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

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 8.43
99 votes
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Avengers Assemble!

#2 - Avengers Assemble!

Season 2 - Episode 26

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 8.37
87 votes
Directors: Roy Burdine
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Operation Galactic Storm

#3 - Operation Galactic Storm

Season 2 - Episode 24

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 8.36
83 votes
Directors: Boyd Kirkland
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Behold…The Vision

#4 - 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 8.35
100 votes
Directors: Roy Burdine
Live Kree or Die

#5 - Live Kree or Die

Season 2 - Episode 25

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 8.34
82 votes
Directors: Steve Gordon
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Prisoner of War

#6 - 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 8.31
97 votes
Directors: Steve Gordon
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Hail, Hydra!

#7 - 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 8.30
89 votes
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Nightmare in Red

#8 - 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 8.30
101 votes
Directors: Boyd Kirkland
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The Ultron Imperative

#9 - 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 8.28
92 votes
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Infiltration

#10 - 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 8.28
95 votes
Directors: Roy Burdine
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Everything Is Wonderful

#11 - 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 8.25
107 votes
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Come the Conqueror

#12 - Come the Conqueror

Season 1 - Episode 18

The Avengers fend off Kang's invasion of Earth.

star 8.24
96 votes
Code Red

#13 - Code Red

Season 2 - Episode 20

Strange fumes sicken all of the Avengers - save for Iron Man, whose suit of armor provides him with protection. Now the armored Avenger must race against time to synthesize a cure for the infected - while the team face the prospect of being quarantined by U.S. Defense Secretary Dell Rusk, who has sent Doc Samson, Falcon, the Red Hulk and the Winter Soldier to arrest them. When Captain America is captured by the Winter Soldier and brought before Dell Rusk, he learns that the enigmatic Secretary harbors a diabolical secret from the supersoldier's past. Based on Avengers: Red Zone.

star 8.21
89 votes
Directors: Roy Burdine
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Secret Invasion

#14 - 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 8.20
100 votes
Directors: Boyd Kirkland
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The Private War of Dr. Doom

#15 - 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 8.18
132 votes
Directors: Gary Hartle
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Ultron Unlimited

#16 - Ultron Unlimited

Season 2 - Episode 17

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.

star 8.17
89 votes
Directors: Roy Burdine
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The Fall of Asgard

#17 - The Fall of Asgard

Season 1 - Episode 25

The Avengers struggle to survive in the realms of Asgard.

star 8.17
104 votes
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Who Do You Trust?

#18 - 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 8.16
105 votes
Directors: Gary Hartle
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New Avengers

#19 - New Avengers

Season 2 - Episode 23

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 8.16
97 votes
Directors: Steve Gordon
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The Man Who Stole Tomorrow

#20 - 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 8.16
104 votes
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Gamma World (Part 1)

#21 - 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 8.16
105 votes
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Along Came a Spider…

#22 - 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 8.15
105 votes
Directors: Roy Burdine
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Gamma World (Part 2)

#23 - Gamma World (Part 2)

Season 1 - Episode 13

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

star 8.15
86 votes
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Ultron-5

#24 - 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 8.15
100 votes
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A Day Unlike Any Other

#25 - A Day Unlike Any Other

Season 1 - Episode 26

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

star 8.12
102 votes
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