List of The Avengers: Earth's Mightiest Heroes episodes

The following is an episode list for The Avengers: Earth's Mightiest Heroes. The series is based on the Marvel Comics superhero team, the Avengers. A 20 part micro-series focusing on each hero's backstory debuted on September 22, 2010 on Disney XD.[1] The series premiered on Disney XD in the United States on October 20, 2010.[2] The second season premiered on April 1, 2012.

Series overview

Season		Episodes	Originally aired
			First aired	Last aired
	Micro-series	20	September 22, 2010	October 11, 2010 (online) October 15, 2010 (United States)
	1	26	October 20, 2010	June 26, 2011
	2	26	April 1, 2012[3]	November 11, 2012[4]

Episodes

Micro-series (2010)

A micro-series, consisting of five-and-a-half-minute "micro-episodes" created from the footage from season-one episodes, premiered online and on Disney XD on September 22, 2010. Series supervising producer Josh Fine said the goal was to "let us explore the individual members of the team in their own ongoing adventures ... do a lot of character development and set the stage for the rest of the season".[5] The last micro-episode aired online on October 11, 2010 and on Disney XD on October 15, 2010.[6]

No.	Title	Directed by	Written by	Original air date	Production code
M1	"Iron Man Is Born!"	Vinton Heuck	Brandon Auman	September 22, 2010[7]	001a[6]
Iron Man saves the world's leaders from a HYDRA attack on the United Nations. Introducing characters: Tony Stark/Iron Man, James Rhodes, Pepper Potts, J.A.R.V.I.S., MODOK, HYDRA, Ultimo
M2	"The Coming of the Hulk"	Sebastian Montes	Kevin Burke & Chris Wyatt	September 23, 2010 (online) October 11, 2010 (United States)	003a[6]
Bruce Banner confronts the Absorbing Man, causing him to transform into the Incredible Hulk. Introducing characters: Bruce Banner/Hulk, Thunderbolt Ross, Absorbing Man
M3	"The Man in the Ant Hill"	Vinton Heuck	Christopher Yost	September 24, 2010 (online) October 11, 2010 (United States)	005a[6]
Ant-Man stops Ulysses Klaw from stealing a rare sample of vibranium. Introducing characters: Hank Pym, Klaw, Janet van Dyne/Wasp, S.H.I.E.L.D., Ultron
M4	"HYDRA Lives"	Vinton Heuck	Brandon Auman	September 25, 2010 (online) October 11, 2010 (United States)	001b[6]
HYDRA unleashes the Dreadnoughts against Iron Man. Introducing characters: Nick Fury, Maria Hill, Dreadnoughts
M5	"Thor the Mighty"	Vinton Heuck	Michael Ryan	September 26, 2010 (online) October 12, 2010 (United States)	002a[6]
The Mighty Thor stops the Wrecking Crew from stealing Stark Industries technology. Introducing characters: Thor, Jane Foster, Wrecking Crew (Wrecker, Thunderball, Bulldozer, Piledriver), Heimdall
M6	"Behold, the Mandroids!"	Vinton Heuck	Brandon Auman	September 27, 2010 (online) October 12, 2010 (United States)	001c[6]
Iron Man stands off against S.H.I.E.L.D.'s Mandroid soldiers.
M7	"Hulk Versus the World"	Sebastian Montes	Kevin Burke & Chris Wyatt	September 28, 2010 (online) October 12, 2010 (United States)	003b[6]
S.H.I.E.L.D. agents Hawkeye and Black Widow join the battle to take down the Incredible Hulk after General Ross' Hulkbusters were defeated. Introducing characters: Hawkeye, Black Widow, Hulkbusters
M8	"The Siege of Asgard"	Vinton Heuck	Michael Ryan	September 29, 2010 (online) October 12, 2010 (United States)	002b[6]
Thor is summoned to defend Asgard from an army of Frost Giants, led by Loki. Introducing characters: Loki, Sif, Balder, Warriors Three (Fandral, Hogun, Volstagg), Odin, Frost Giants, Ymir, Hugin and Munin
M9	"Nick Fury, Agent of S.H.I.E.L.D."	Vinton Heuck	Brandon Auman	September 30, 2010 (online) October 13, 2010 (United States)	001d[6]
Nick Fury fights the Grim Reaper when he infiltrates the Vault to free Baron Strucker. Introducing characters: Jimmy Woo, Grim Reaper, Baron von Strucker, Crimson Dynamo, MODOK, Technovore
M10	"This Monster, This Hero"	Sebastian Montes	Kevin Burke & Chris Wyatt	October 1, 2010 (online) October 13, 2010 (United States)	003c[6]
Hawkeye and Black Widow take on the Hulk. Introducing characters: Abomination, Bobbi Morse, Doc Samson, Bi-Beast, U-Foes (Vector, Ironclad, Vapor, X-Ray), Leader, Madman, Radioactive Man
M11	"My Brother, My Enemy"	Vinton Heuck	Michael Ryan	October 2, 2010 (online) October 13, 2010 (United States)	002c[6]
Thor battles his brother Loki.
M12	"The Isle of Silence"	Vinton Heuck	Michael Ryan	October 3, 2010 (online) October 13, 2010 (United States)	002d[6]
Loki is banished to the Isle of Silence by Odin where he contemplates the events that lead him there. Introducing characters: Enchantress, Executioner
M13	"Enter the Whirlwind"	Vinton Heuck	Christopher Yost	October 4, 2010 (online) October 14, 2010 (United States)	005b[6]
The Wasp puts an end to Whirlwind's rampage. Introducing characters: Whirlwind Note The Punisher and Man-Thing are referenced.
M14	"Meet Captain America"	Sebastian Montes	Paul Giacoppo	October 5, 2010 (online) October 14, 2010 (United States)	004a[6]
Captain America leads an assault on a HYDRA facility. Introducing characters: Steve Rogers/Captain America, Kang the Conqueror, Red Skull, Bucky Barnes, Abraham Erskine, Chester Phillips, James Howlett, Howling Commandos (Jack Fury, Dum Dum Dugan, Gabe Jones, Rebel Ralston, Dino Manelli, Izzy Cohen, Pinky Pinkerton)
M15	"The Red Skull Strikes!"	Sebastian Montes	Paul Giacoppo	October 6, 2010 (online) October 14, 2010 (United States)	004b[6]
Captain America and Bucky Barnes come face to face with the Red Skull when he has found a way into Asgard and plans to use the creatures there against the Allied Forces.
M16	"If This Be Doomsday!"	Sebastian Montes	Paul Giacoppo	October 7, 2010 (online) October 14, 2010 (United States)	004c[6]
HYDRA's scheme to win World War II backfires.
M17	"Welcome to Wakanda"	Vinton Heuck	Christopher Yost	October 8, 2010 (online) October 15, 2010 (United States)	005d[6]
King T'Chaka is challenged to a duel for control of Wakanda. Introducing characters: T'Challa/Black Panther, Man-Ape, T'Chaka/Black Panther, N'Gassi, The Dora Milaje (Okoye, Divine Justice, Malice/Nakia)
M18	"Lo, There Shall Come a Conqueror"	Sebastian Montes	Paul Giacoppo	October 9, 2010 (online) October 15, 2010 (United States)	004d[6]
Kang the Conqueror discovers that his timeline is somehow being destroyed by Captain America. Introducing characters: Ravonna
M19	"Beware the Widow's Bite!"	Sebastian Montes	Kevin Burke & Chris Wyatt	October 10, 2010 (online) October 15, 2010 (United States)	003d[6]
Hawkeye becomes suspicious of the Black Widow.
M20	"The Big House"	Vinton Heuck	Christopher Yost	October 11, 2010 (online) October 15, 2010 (United States)	005c[6]
Ant-Man quells Whirlwind's riot inside the Big House, the world's smallest supervillain prison. S.H.I.E.L.D. learns that Whirlwind is a mutant and plans to have him handed over to the Mutant Response Division. Meanwhile, Whirlwind learns from Mad Thinker that the Big House is one of the four supervillain prisons and that when their systems break down, every villain will take the opportunity to escape. Introducing characters: Clay Quartermain, Mad Thinker, Grey Gargoyle, Arnim Zola, Mandrill, Graviton

Season 1 (2010–11)

The first season premiered on October 20, 2010 with the two-part episode "Breakout", continuing on from the events of the online micro-series. This move meant that the series did not air on television in chronological story order; the broadcast of "Breakout" was followed by the episodes "Iron Man is Born", "Thor the Mighty", "Hulk Versus the World", "Meet Captain America", and "The Man in the Ant Hill", each one a compilation of four micro-series episodes, which all take place before "Breakout".[5] The series took a hiatus after "The Kang Dynasty" and returned on May 15, 2011 in the United States.

The series was broadcast around the world and released on DVD in the correct chronological story order (production order). The season finale debuted in Australia on April 12, 2011, then aired on June 26, 2011 in the United States. The first half of Season 1 was released on home video on April 26, 2011,[8] and the second half was released on October 25, 2011.[6]

No. in series	No. in season	Title	Directed by	Written by	Original air date	Production code
1	1	"Iron Man is Born"	Vinton Heuck	Brandon Auman	September 22, 2010	001[6]
After defeating HYDRA's attack on the United Nations, Iron Man learns that S.H.I.E.L.D. is taking control of his technology. A compilation of the micro-series episodes "Iron Man is Born!", "HYDRA Lives", "Behold, the Mandroids!", and "Nick Fury, Agent of S.H.I.E.L.D."
2	2	"Hulk vs the World"	Sebastian Montes	Kevin Burke & Chris Wyatt	October 24, 2010	003[6]
Hulk tries not to get captured by S.H.I.E.L.D. and Hulkbuster units, while Hawkeye is betrayed by Black Widow who is apparently working for HYDRA. A compilation of the micro-series episodes "The Coming of the Hulk", "Hulk Versus the World", "This Monster, This Hero", and "Beware the Widow's Bite!".
3	3	"Thor the Mighty"	Vinton Heuck	Michael Ryan	October 24, 2010	002[6]
After stopping a robbery attempt by the Wrecking Crew, Thor returns to Asgard in order to defeat Loki and the Frost Giants. A compilation of the micro-series episodes "Thor the Mighty", "The Siege of Asgard", "My Brother, My Enemy", and "The Isle of Silence".
4	4	"The Man in the Ant Hill"	Vinton Heuck	Christopher Yost	October 24, 2010	005[6]
Ant Man and Wasp take down Klaw and Whirlwind. Afterwards Klaw helps M'Baku (a.k.a. the Man Ape) take down T'Chaka and become king of Wakanda. But T'Challa dons the Black Panther suit and flees to look for help. A compilation of the micro-series episodes "The Man in the Ant Hill", "Enter the Whirlwind", "The Big House", and "Welcome to Wakanda".
5	5	"Meet Captain America"	Sebastian Montes	Paul Giacoppo	October 24, 2010	004[6]
Kang the Conqueror revisits a time where Captain America and Bucky took down a HYDRA portal to Asgard as Kang believes Captain America is responsible for destroying Kang's timeline. A compilation of the micro-series episodes "Meet Captain America", "The Red Skull Strikes!", "If This Be Doomsday!", and "Lo, There Shall Come a Conqueror".
6	6	"Breakout, Part 1"	Sebastian Montes	Christopher Yost	October 20, 2010[2]	006[6]
A mass breakout occurs at each of the four supervillain prisons. Introducing characters: A.I.M. (Scientist Supreme), Lucia von Bardas, Zzzax, Blizzard, Constrictor, Griffin, Red Ghost, Super Apes, Living Laser, Whiplash, Chemistro, King Cobra, Wendigo, Purple Man, Baron Zemo
7	7	"Breakout, Part 2"	Vinton Heuck	Christopher Yost	October 20, 2010[2]	007[6]
Ant-Man/Giant-Man, Hulk, Iron Man, Thor and Wasp band together to battle Graviton after he escapes from the Raft and targets Nick Fury. Introducing characters: LMD Based on Avengers #1 and New Avengers #1-3.
8	8	"Some Assembly Required"	Sebastian Montes	Brandon Auman	October 27, 2010	008
Hulk is magically manipulated by the Enchantress to attack his teammates. Based on Avengers #2 and Avengers Classic #2.
9	9	"Living Legend"	Vinton Heuck	Kevin Burke & Chris Wyatt	November 3, 2010	009
After Captain America's frozen body is discovered in the Arctic, Arnim Zola unleashes Doughboy on New York City to distract the Avengers while Baron Zemo battles Captain America. Based on Avengers #4. Introducing characters: Doughboy, Howard Stark
10	10	"Everything is Wonderful"	Vinton Heuck	Brandon Auman	November 10, 2010	010
Enraged by Tony Stark buying out his company, Simon Williams becomes a deadly being of ionic energy, Wonder Man, in order to exact revenge. Meanwhile, Wasp and Thor chase a group of A.I.M. agents to find their secret hideout and run into another villain, MODOK. Based on Avengers #9. Introducing characters: Wonder Man
11	11	"Panther's Quest"	Sebastian Montes	Paul Giacoppo	November 17, 2010	011
T'Challa, the new Black Panther, meets the Avengers and tells them that his country has been overthrown by Man-Ape. As the Avengers arrive in Wakanda, not only do they have to help T'Challa reclaim his family's throne and country, but they also have to deal with Klaw, the Grim Reaper, and HYDRA, who are planning to steal the Vibranium shards in Wakanda's mines. Loosely Based on Avengers #52.
12	12	"Gamma World Pt. 1"	Vinton Heuck	Michael Ryan	November 26, 2010	012
The Leader has placed an expanding dome of pure gamma radiation around the Cube, with anyone caught inside it being mutated into a Gamma Monster. The Avengers, along with the support of S.H.I.E.L.D., enter the Cube in an attempt to the destroy the Gamma Generator. Introducing characters: Madame Hydra
13	13	"Gamma World Pt. 2"	Sebastian Montes	Michael Ryan	November 26, 2010	013
With the Avengers, minus Ant-Man, turned into Gamma Monsters, Hawkeye must convince the Hulk to help fight the Leader and the Abomination while Thor (who was unaffected by the Gamma Dome) fights the Absorbing Man.
14	14	"Masters of Evil"	Sebastian Montes	Christopher Yost	December 5, 2010	014
With Abomination, Crimson Dynamo, Wonder Man, Enchantress and Executioner on his side, Baron Heinrich Zemo leads them as the Masters of Evil in a systematic takedown of the Avengers. Based on Avengers #274-277.
15	15	"459"	Vinton Heuck	Joelle Sellner	December 12, 2010	015
Wasp and the Avengers meet Captain Marvel and team up with him to stop a Kree Sentry from destroying the planet. Based on Fantastic Four #64 and MARVEL Super-Heroes #12[9] Introducing characters: Captain Marvel, Carol Danvers, Sentry-459, Yon-Rogg, Supreme Intelligence (cameo appearance)
16	16	"Widow's Sting"	Vinton Heuck	Kevin Burke & Chris Wyatt	December 19, 2010	019[10]
Hawkeye, Captain America, Black Panther, and S.H.I.E.L.D. agent Mockingbird take on HYDRA in order to find Black Widow. Introducing characters: Skrulls, Mockingbird
17	17	"The Man Who Stole Tomorrow"	Sebastian Montes	Andrew Robinson	January 9, 2011	016
Kang the Conqueror comes from the 41st century to destroy Captain America, who Kang believes may soon cause his timeline to cease to exist. Based on Avengers #8. Introducing characters: Fantastic Four (Mister Fantastic, Invisible Woman, Human Torch, Thing)
18	18	"Come the Conqueror"	Vinton Heuck	Eugene Son	January 16, 2011	017
The Avengers fend off Kang's invasion of Earth while Iron Man tries to locate Kang's ship. Introducing characters: Black Knight, Jasper Sitwell
19	19	"The Kang Dynasty"	Sebastian Montes	Brian Reed	January 23, 2011	018
The Avengers attack Kang's ship with the help of the last of the Ultrons. Introducing characters: H.E.R.B.I.E.
20	20	"The Casket of Ancient Winters"	Sebastian Montes	Paul Giacoppo	April 4, 2011 (Australia)[11] May 15, 2011 (United States)[12]	020
The Avengers must stop Malekith the Accursed after he obtains the Casket of Ancient Winters. Based on Avengers #249 Introducing characters: Dark Elves (Malekith the Accursed)
21	21	"Hail, HYDRA!"	Vinton Heuck	Kevin Burke & Chris Wyatt	April 5, 2011 (Australia)[13] May 22, 2011 (United States)[12]	021
The Black Widow requests the Avengers' help in retrieving the Cosmic Cube before A.I.M. and HYDRA tear the world apart fighting over it.
22	22	"Ultron-5"	Sebastian Montes	Brandon Auman	April 6, 2011 (Australia)[14] May 29, 2011 (United States)[12]	022
Ant-Man, tired of the unending violence, quits the team while Ultron attempts to bring about peace. Introducing characters: Serpent Society (Anaconda, Bushmaster (Quincy McIver), Death Adder, Rattler)
23	23	"The Ultron Imperative"	Vinton Heuck	Brandon Auman	April 7, 2011 (Australia)[15] June 5, 2011 (United States)[12]	023
Ultron has transcended his body, and has taken over the world's technology systems.
24	24	"This Hostage Earth"	Sebastian Montes	Michael Ryan	April 8, 2011 (Australia)[16] June 12, 2011 (United States)[12]	024
The Masters of Evil (now joined by Chemistro, the Grey Gargoyle, and the Living Laser) prepare for a full-scale invasion of Earth...and unless the Avengers can stop them, the legions of the Nine Realms are coming to Earth. Introducing characters: Karnilla
25	25	"The Fall of Asgard"	Vinton Heuck	Christopher Yost	April 11, 2011 (Australia)[17] June 19, 2011 (United States)[12]	025
Lost and separated, the Avengers struggle to survive in the Nine Realms. Introducing characters: Hela, Ulik, Dwarves (Eitri), Light Elves (Faradei), Valkyrie
26	26	"A Day Unlike Any Other"	Sebastian Montes	Christopher Yost	April 12, 2011 (Australia)[18] June 26, 2011 (United States)[12]	026
The Avengers battle Loki in Asgard as the other realms fall. Introducing characters: Hoarfen, Midgard Serpent

Season 2 (2012–13)

Marvel Animation and Disney XD later confirmed a second season of the series.[19][20] The first episode was publicly shown at the 2011 San Diego Comic-Con in June 2011 and again at New York Comic-Con in October 2011 before its television broadcast.[1][2][21]

No. in series	No. in season	Title	Directed by	Written by	Original air date	Production code
27	1	"The Private War of Doctor Doom"	Gary Hartle	Christopher Yost	April 1, 2012[3]	027
Doctor Doom's forces attack the Avengers and the Fantastic Four, kidnapping the Wasp and the Invisible Woman. Based on Avengers #25 and Avengers #154-156. Introducing characters: Doctor Doom
28	2	"Alone Against A.I.M."	Boyd Kirkland	Kevin Burke & Chris Wyatt	April 8, 2012[22]	028
A.I.M.'s Scientist Supreme unleashes Technovore, providing a distraction for an armorless Tony Stark while the A.I.M. agents fight Black Panther, Captain America, and War Machine in an attempt to steal Stark Industries' technology. Introducing characters: War Machine
29	3	"Acts of Vengeance"	Roy Burdine	Michael Ryan[23]	April 15, 2012[22]	029
The Enchantress seeks revenge on Baron Zemo and the Masters of Evil for betraying her, and the remaining supervillains go to the Avengers for protection. Introducing characters: Surtur
30	4	"Welcome to the Kree Empire"	Boyd Kirkland	Paul Giacoppo	April 22, 2012[22]	030
A Kree ship led by Ronan the Accuser arrives and attacks a S.W.O.R.D. ship. While Abigail Brand fights the Kree soldiers in space, the Avengers are assisted by Ms. Marvel in fighting Ronan and an army of Kree soldiers on Earth. Introducing characters: Ms. Marvel, Ronan the Accuser, Abigail Brand, Henry Peter Gyrich, Sydren, Kalum Lo
31	5	"To Steal an Ant-Man"	Roy Burdine	Brandon Auman	April 29, 2012[22]	031
When Hank Pym's Ant-Man/Giant-Man suit is stolen, he enlists the Heroes for Hire to find the thief, but Pym soon learns that this isn't a common robbery. Based on MARVEL Premiere #47. Introducing characters: Luke Cage, Iron Fist, Scott Lang, Cassie Lang, Crossfire, Señor Muerte, Spear, Mangler, Gideon Mace, Cockroach Hamilton, Big Ben Donovan, Piranha Jones, Scythe
32	6	"Michael Korvac"	Boyd Kirkland	Dan Abnett & Andy Lanning	May 6, 2012	032
When a mysterious man known as Michael Korvac is discovered, the Avengers must figure out exactly what happened to him - all while defending him from the team of beings who have come after him: the Guardians of the Galaxy. Introducing characters: Michael Korvac, Guardians of the Galaxy (Star-Lord, Adam Warlock, Groot, Rocket Raccoon, Quasar), Corrina Korvac NOTE: This episode was dedicated to Boyd Kirkland.
33	7	"Who Do You Trust?"	Gary Hartle	Brian Reed	May 13, 2012	034[24]
Nick Fury returns, having assembled a team of heroes in secret (himself, Black Widow, Mockingbird, and Quake) to gather information about the impending Skrull invasion of Earth. Introducing characters: Quake, Veranke
34	8	"The Ballad of Beta Ray Bill"	Steve Gordon	Michael Ryan	May 20, 2012	033[24]
Thor is attacked by a powerful creature known as Beta Ray Bill - who proves himself just as able to lift and wield Mjölnir. Thor and Sif soon finds themselves allying with this strange warrior (who apparently has his own reasons for disliking Surtur) to save all of Asgard from being burned to the ground by the demon lord of Muspelheim. Based on Thor #337-338. Introducing characters: Beta Ray Bill
35	9	"Nightmare in Red"	Boyd Kirkland	Mark Parsons	May 30, 2012 (Australia) June 24, 2012 (United States)[25]	036[26]
A mysterious red-skinned Hulk attacks the S.H.I.E.L.D. Helicarrier. While Wasp and Captain America fight this new behemoth (who Maria Hill fervently believes is the Hulk gone rogue), Hawkeye attempts to keep a resistant Bruce Banner safe. Based on Hulk Vol. 2 #1-6. Introducing characters: Red Hulk, Falcon, Glenn Talbot, Winter Soldier
36	10	"Prisoner of War"	Steve Gordon	Kevin Burke & Chris Wyatt	May 31, 2012 (Australia) July 1, 2012 (United States)	038[27]
After being a prisoner of the Skrulls for months, Captain America teams up with other prisoners, including some of his enemies, to escape. But in order to do so, they must first get past the mighty Super-Skrull... Introducing characters: Galactus (flashback only), Super-Skrull (Kl'rt)
37	11	"Infiltration"	Roy Burdine	Christopher Yost	June 4, 2012 (Australia)[28] July 8, 2012 (United States)	037
The Skrulls' invasion of Earth has begun - and Wakanda is the first target. Ms. Marvel comes to the rescue, but must deal with both a stubborn Black Panther and a team of Skrulls posing as the Avengers. Based on Secret Invasion #1-4.
38	12	"Secret Invasion"	Boyd Kirkland	Christopher Yost	June 5, 2012 (Australia)[29] July 15, 2012 (United States)	039[27]
The Skrulls have invaded the entire planet and are using Captain America's position of respect to convince the humans to submit. When Hawkeye, Wasp, and Ms. Marvel are captured by Veranke's army of Super-Skrulls, all seems lost - until Iron Man and Thor are reunited with the real Captain America in a last-ditch effort to drive back the Skrull onslaught and save Earth. Based on Secret Invasion Vol. 1 #5-8 and Secret Invasion: Fantastic Four #1-3. Introducing characters: Super-Skrulls (Criti Noll, Rl'nnd)
39	13	"Along Came a Spider..."	Roy Burdine	Christopher Yost	June 6, 2012 (Australia)[30] July 22, 2012 (United States)	042[27]
Captain America teams up with the equally mistrusted Spider-Man to fight the Serpent Society when they try to rescue Viper and King Cobra from S.H.I.E.L.D. custody. Introducing characters: Spider-Man, J. Jonah Jameson, Robbie Robertson, Betty Brant
40	14	"Behold...The Vision!"	Roy Burdine	Michael Ryan	June 7, 2012 (Australia)[31] July 29, 2012 (United States)	035[27]
With Thor and Hawkeye in tow, Captain America travels to Wakanda to have his shield repaired and to persuade Black Panther to rejoin the team. But a mysterious figure known only as the Vision arrives to steal the shield - along with Wakanda's supply of vibranium. Based in part on Avengers #57. Introducing characters: Vision, Professor Thorton, Malcolm Colcord
41	15	"Powerless"	Steve Gordon	Man of Action & Danielle Wolff	June 11, 2012 (Australia)[32] August 5, 2012 (United States) (DVD release)[33]	044
The Enchantress offers Loki a chance to exact his revenge on Thor and the Avengers for thwarting his conquest of the Nine Realms, and uses a spell to strip Thor, Captain America, and Iron Man of their powers. Now, the helpless heroes must defeat Loki - his soul now in command of a powerful Asgardian weapon known as the Destroyer - without their abilities. Introducing characters: Destroyer, Donald Blake
42	16	"Assault on 42"	Steve Gordon	Brian Reed	June 12, 2012 (Australia)[34] August 12, 2012 (United States)	040[35]
Stranded in the Negative Zone, the Avengers must join forces with their enemies - including former members of the Masters of Evil - to fight off an army of strange insectoid creatures that are laying siege to 42. Introducing characters: Annihilus
43	17	"Ultron Unlimited"	Roy Burdine	Christopher Yost	June 13, 2012 (Australia)[36] August 19, 2012 (United States)[37]	041[35]
The Avengers are ambushed and captured, one by one, by Ultron's team of synthezoid Avengers as part of the wayward android's plan to rid the world of "flawed" humans, perfect himself, and construct a mate. Introducing characters: Jocasta
44	18	"Yellowjacket"	Boyd Kirkland	Man of Action & James Felder	June 14, 2012 (Australia)[38] September 9, 2012 (United States)[39]	043[39]
A mysterious explosion seemingly kills Hank Pym in his college laboratory, but as the Avengers and their friends mourn the loss of their fallen comrade-in-arms, a fearless new vigilante calling himself Yellowjacket - endowed with the same powers and technology as Ant-Man/Giant-Man and Wasp - begins taking out the members of the Serpent Society. Introducing characters: Yellowjacket Note: Despite events from the previous episode, Vision can be seen in the background at the memorial.
45	19	"Emperor Stark"	Boyd Kirkland	Christopher Yost	June 18, 2012 (Australia)[40] September 16, 2012 (United States)[39]	045[39]
The Vision awakens after a month of repairs to find that Tony Stark and his fellow Avengers have taken over the world. With the whole planet turned against him, the Vision must get to the bottom of Stark's "utopia" - only to discover an unlikely figure to be the true power behind the Avengers' throne. Based on the 1987 Marvel graphic novel Emperor Doom (albeit with a different cast). Introducing characters: Purple Man
46	20	"Code Red"	Roy Burdine	Man of Action	June 19, 2012 (Australia)[41] September 23, 2012 (United States)[39]	046[39]
Strange fumes sicken all of the Avengers - save for Iron Man, whose suit of armor provides him with protection. Based on Avengers: Red Zone.
47	21	"Winter Soldier"	Boyd Kirkland	Man of Action & James Felder	June 20, 2012 (Australia)[42] September 30, 2012 (United States)[39]	047[39]
Captain America ponders the mystery of the Winter Soldier and enlists Nick Fury's aid to find him when the Red Skull escapes from prison and massive robots - the Sleepers - arise as part of a contingency plan by the founder of HYDRA to destroy Washington, D.C. Introducing characters: Valentina Allegra de Fontaine (flashback only)
48	22	"The Deadliest Man Alive"	Steve Gordon	Man of Action	June 21, 2012 (Australia)[43] October 7, 2012 (United States)[44]	048[44]
When the Hulk's name is cleared of the crimes committed by the Red Hulk, the Avengers find that the deception put forth by Captain America's Skrull doppelganger has made the green-skinned juggernaut even more of a loose cannon than before.
49	23	"New Avengers"	Steve Gordon	Christopher Yost	June 25, 2012 (Australia)[45] October 14, 2012 (United States)[44]	050[44]
Kang the Conqueror is freed from prison by his alternate timeline doppelgangers and attempts to conquer the world once again, this time trapping the Avengers in a temporal void to keep them from getting in the way of his plans. Now a new team of heroes (Spider-Man, War Machine, Wolverine, Iron Fist, Luke Cage, and the Thing) must band together to stop the cross-temporal onslaught. Introducing characters: Wolverine, Council of Cross-Time Kangs
50	24	"Operation Galactic Storm"	Boyd Kirkland	Christopher Yost	June 26, 2012 (Australia)[46] October 21, 2012 (United States)[44]	049[44]
The Kree attempt to create a wormhole connecting Earth's solar system with their galaxy, which will consequently destroy the Sun and all life on Earth - just as Kang the Conqueror predicted. The Avengers and Captain Marvel head into space to stop it. Introducing characters: Peter Corbeau
51	25	"Live Kree or Die"	Steve Gordon	Christopher Yost	June 27, 2012 (Australia)[47] November 4, 2012 (United States)[4]	051[48]
The Avengers arrive on the Kree homeworld of Hala, but find that they aren't exactly welcome there - even with Captain Marvel on their side. Introducing characters: Supreme Intelligence
52	26	"Avengers Assemble!"	Roy Burdine	Christopher Yost	June 28, 2012 (Australia)[49] November 11, 2012 (United States)[4]	052[48]
The Avengers must bring forth an army of nearly all their allies to face their greatest challenge yet - Galactus, the devourer of countless worlds and civilizations, and his quartet of heralds drawn from the very elements of nature. Galactus first sends forth his heralds to oversee the construction of devices around the world to aid him in consuming Earth. Terrax is sent to New York City, while Airwalker is sent to a polar region, Stardust to the middle of an unspecified ocean, and Firelord to an active volcano. The Avengers then call their allies, splitting up into five different teams. Terrax is engaged by Captain America, Iron Fist, Spider-Man, War Machine, and Quake; he is disarmed by Spider-Man before being defeated by the former two and his device destroyed by the latter two. Airwalker is engaged by Thor, Vision, Falcon, Luke Cage, and Black Widow; he is defeated by Vision after Thor heavily weakens him while his device is destroyed by explosives planted by the latter two as Falcon aids their escape. Stardust is engaged by Human Torch, Wasp, Hawkeye, Wolverine and Thing; she is defeated after Human Torch stuns her with a stream of fire and Wasp destroys her from the inside out, with her device being destroyed by several explosive arrows from Hawkeye. Firelord is engaged by Scott Lang, Black Panther, Hulk, Bucky Barnes, and Invisible Woman; under Black Panther's leadership, Invisible Woman greatly depowers Firelord by depriving him of oxygen before Hulk thunderclaps Firelord, dissipating him. Firelord's device is subsequently destroyed by Bucky's rocket launcher. Meanwhile, Iron Man, Ms. Marvel, Reed Richards, Hank Pym, and Doc Samson infiltrate Galactus's ship, but their plan is ruined after Hank Pym attempts to shrink Galactus. Galactus then attempts to destroy the planet himself, and is stopped by a combined effort from multiple Avengers, pushing him into a portal to the Negative Zone where he can consume energy forever. Introducing characters: Galactus, Heralds of Galactus (Air-Walker, Firelord, Stardust, Terrax) NOTE: This is the series finale, making way for Avengers Assemble. Almost every heroic character that appeared in the series reappears in this episode, with the exception of Mockingbird, the Guardians of the Galaxy, and the Asgardians.

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