The Best Episodes of The Avengers: Earth's Mightiest Heroes

Last Updated: Nov 3, 2018

This animated series follows the adventures of the superhero team The Avengers - primarily consisting of Iron Man, Thor, Captain America, the Hulk, Ant-Man (a.k.a. Giant-Man), Wasp, Hawkeye, and the Black Panther - as they team up to save the world from dangers far too great for one superhero to handle alone. The Avengers frequently work with S.H.I.E.L.D., a peacekeeping agency run by Nick Fury (while the two aren't competing to save the world by their own means, which are often quite different).

The Kang Dynasty

#1 - The Kang Dynasty

Season 1 - Episode 19

The Avengers attack Kang's ship with the help of the last of the Ultrons. They defeat Kang, who tells them the worst is yet to come.

star 8.38
106 votes
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Avengers Assemble!

#2 - Avengers Assemble!

Season 2 - Episode 25

From the very moment of their team's inception, the Avengers have fought against super-villains, time-travelling conquerors and even shape-shifting alien invaders. But now they 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.

star 8.33
87 votes
Directors: Roy Burdine
Writers: Christopher Yost
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Live Kree or Die

#3 - Live Kree or Die

Season 2 - Episode 24

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.

star 8.28
89 votes
Directors: Steve Gordon
Writers: Christopher Yost
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Hail, Hydra!

#4 - Hail, Hydra!

Season 1 - Episode 21

The Black Widow requests the Avengers' help in retrieving the Cosmic Cube before AIM and HYDRA tear the world apart fighting over it.

star 8.21
100 votes
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The Ultron Imperative

#5 - The Ultron Imperative

Season 1 - Episode 23

When the team is devastated after a loss, Iron Man and Ant-Man go destroying all remnants of Ultron. But they do not realize that Ultron has transcended his body, and has taken over the world's technology systems.

star 8.20
99 votes
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Nightmare in Red

#6 - Nightmare in Red

Season 2 - Episode 9

When S.H.I.E.L.D. is attacked by the Hulk, the Avengers rush to the scene. When they arrive, the rampaging Hulk is RED! The hunt is on for Bruce Banner as the Avengers try and unravel the mystery of 'Who is the Red Hulk?'

star 8.19
113 votes
Directors: Boyd Kirkland
Writers: Mark Parsons
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Winter Soldier

#7 - Winter Soldier

Season 2 - Episode 20

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.

star 8.17
98 votes
Directors: Boyd Kirkland
Writers: Man of Action, James Felder
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Infiltration

#8 - Infiltration

Season 2 - Episode 11

The Skrull invasion has begun, and Wakanda is the first target. Ms. Marvel is the only one there to fight off these aliens, whose shape-shifting abilities make matters much worse for her.

star 8.17
106 votes
Directors: Roy Burdine
Writers: Christopher Yost
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Powerless

#9 - Powerless

Season 2 - Episode 26

The Enchantress, as part of her master Surtur's plan, 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. NOTE: This episode was skipped in US airings, but included on the Avengers: Earth's Mightiest Heroes boxed volume Secret Invasion as a bonus episode. Marvel released a clip of the episode, adding that it is "an un-aired episode available exclusively" on the DVD. This episode is part of the regular airing schedule on ABC Australia, and eventually broadcast on Disney XD in the US on May 5, 2013.

star 8.17
100 votes
Directors: Steve Gordon
Writers: Man of Action, Danielle Wolff
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Everything Is Wonderful

#10 - Everything Is Wonderful

Season 1 - Episode 10

Simon Williams becomes a deadly being of ionic energy after being enraged by Tony destroying his company. Meanwhile, Wasp and Thor chase a group of AIM agents to find their secret hideout and run into another villain, MODOK.

star 8.17
122 votes
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Behold…The Vision

#11 - Behold…The Vision

Season 2 - Episode 14

Still trying to restore hope and order to the world after the Skrull invasion, Captain America travels to Wakanda with the Avengers to repair his shield, but a new foe has come to take his shield. The Avengers must now find out where he came from and who sent him before he prevails.

star 8.16
112 votes
Directors: Roy Burdine
Writers: Michael Ryan
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Prisoner of War

#12 - Prisoner of War

Season 2 - Episode 10

After being held prisoner for months, Captain America is ready to break out. If he is to succeed he must team up with his enemies. Cap won't let anything stop him, but he didn't count on facing the Super Skrull!

star 8.15
108 votes
Directors: Steve Gordon
Writers: Kevin Burke, Chris Wyatt
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Come the Conqueror

#13 - Come the Conqueror

Season 1 - Episode 18

The Avengers fend off Kang's invasion of Earth.

star 8.15
105 votes
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The Fall of Asgard

#14 - The Fall of Asgard

Season 1 - Episode 25

The Avengers struggle to survive in the realms of Asgard.

star 8.12
113 votes
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Gamma World (Part 2)

#15 - Gamma World (Part 2)

Season 1 - Episode 13

With the Avengers turned into Gamma Monsters, Hawkeye must convince Hulk to help fight Leader.

star 8.10
94 votes
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Secret Invasion

#16 - Secret Invasion

Season 2 - Episode 12

The Skrulls have invaded the entire Earth, and Captain America, Iron Man, and Thor lead an attack on the aliens.

star 8.10
110 votes
Directors: Boyd Kirkland
Writers: Christopher Yost
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The Private War of Dr. Doom

#17 - The Private War of Dr. Doom

Season 2 - Episode 1

The Avengers team up with the Fantastic Four to battle Dr.Doom's armies.

star 8.09
149 votes
Directors: Gary Hartle
Writers: Christopher Yost
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Gamma World (Part 1)

#18 - Gamma World (Part 1)

Season 1 - Episode 12

Leader has placed a dome around the Cube. It soon expands with anyone who is caught in it turned into a Gamma Monster. Meanwhile, Hawkeye catches up with Black Widow.

star 8.09
119 votes
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New Avengers

#19 - New Avengers

Season 2 - Episode 22

Kang the Conqueror is freed from prison by his alternate timeline look-alikes 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.

star 8.08
92 votes
Directors: Steve Gordon
Writers: Christopher Yost
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Ultron-5

#20 - Ultron-5

Season 1 - Episode 22

Ant-Man gets tired of unending violence and he wants to find a better way to bring peace to world. After all, this is why he created the robot army, Ultron. But something goes terribly wrong.

star 8.08
111 votes
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A Day Unlike Any Other

#21 - A Day Unlike Any Other

Season 1 - Episode 26

The Avengers go against Loki, although they are nothing to Loki's power.

star 8.08
111 votes
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The Man Who Stole Tomorrow

#22 - The Man Who Stole Tomorrow

Season 1 - Episode 17

Kang arrives from the future, claiming he must kill Captain America and conquer the Earth in order to save it from destruction.

star 8.07
115 votes
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Who Do You Trust?

#23 - Who Do You Trust?

Season 2 - Episode 7

The Avengers are torn apart when Nick Fury returns and reveals that the shapeshifting aliens Skrulls have begun infiltrating Earth. The situation becomes worse when they learn a Skrull lurks within the Avengers.

star 8.07
115 votes
Directors: Gary Hartle
Writers: Brian Reed
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Along Came a Spider…

#24 - Along Came a Spider…

Season 2 - Episode 13

Captain America is still trying to earn back the trust of the public, he teams up with the equally-mistrusted Spider-Man to fight the Serpent Society, whose members are trying to rescue Viper.

star 8.07
116 votes
Directors: Roy Burdine
Writers: Christopher Yost
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Operation Galactic Storm

#25 - Operation Galactic Storm

Season 2 - Episode 23

The Kree attempt to create a wormhole connecting our 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, but will they be in time?

star 8.05
106 votes
Directors: Boyd Kirkland
Writers: Christopher Yost
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