Iron Man confronts his teammates with a startling revelation and accuses one hero of being a spy in this all-new clip from Sunday's episode of "The Avengers: Earth's Mightiest Heroes!" premiering at 11:30 a.m. ET inside Marvel Universe on Disney XD!

Earth's Mightiest Heroes are back for another season of fun and adventure inside Marvel Universe on Disney XD! Catch a clip from the season premiere of "The Avengers: Earth's Mightiest Heroes!" featuring the Fantastic Four, and tune in this Sunday at 12:00 p.m. ET!

Iron Man is surprised to discover that Baron Zemo has surrendered in Sunday's new episode of "The Avengers: Earth's Mightiest Heroes!" at 11:30 a.m. ET inside Marvel Universe on Disney XD!

The Avengers face Ronan the Accuser and his Kree soldiers in this clip from "The Avengers: Earth's Mightiest Heroes!" Catch a new episode Sunday at 11:30 a.m. ET inside Marvel Universe on Disney XD!

Hulk's convinced the Avengers betrayed him in this all-new clip from Sunday's episode of "The Avengers: Earth's Mightiest Heroes!" premiering at 11:30 a.m. ET inside the Marvel Universe on Disney XD!

When the Helicarrier is embarrassingly smashed, the Squad needs to find a place to crash. The team proves none too welcome at Stark Industries, the Punisher's battle van and Reptil's bedroom. Dr. Strange takes them in, but they dread a creepy, wacky night in his Sanctum Sanctorum. And thanks to the Enchantress, there is even more magical mayhem than they bargained for.

The Masters of Evil get the upper hand on our heroes in this clip from "The Avengers: Earth's Mightiest Heroes!" Vol. 4, on DVD October 25!

Captain America must make a deal with Hela in this EXCLUSIVE new clip from the Season One conclusion to "The Avengers: Earth's Mightiest Heroes!" premiering Sunday, June 26 at 10:00 a.m. ET!

Loki unleashes the big dog on our heroes in this new clip from the season one conclusion to "The Avengers: Earth's Mightiest Heroes!" premiering this Sunday, June 26 at 10:00 a.m. ET on Disney XD!

Hawkeye enlists the aid of the Hulk to help save the Avengers! Get "The Avengers: Earth's Mightiest Heroes!" Vols. 1 & 2 on DVD April 26!

Nick Fury makes Spider-Man an "Ultimate" offer in this new clip! Join Peter Parker and all his friends in the Marvel Universe for the series premiere of "Ultimate Spider-Man" this Sunday on Disney XD!

Spidey finds a way to convince the Hulk to team up in this clip from this weekend's new "Ultimate Spider-Man," premiering Sunday morning at 11:00 a.m. ET inside Marvel Universe on Disney XD!

The Avengers and Guardians of the Galaxy work together in this weekend's all-new episode of "The Avengers: Earth's Mightiest Heroes!" premiering Sunday at 11:30 a.m. ET inside Marvel Universe on Disney XD!

Brush up on all things HYDRA before "The Avengers: Earth's Mightiest Heroes!" Villaintine's Day marathon this Sunday, February 13 at 8:00 a.m. ET on Disney XD!

Red Hulk is out to get the Green Goliath in this clip from Sunday's all-new episode of "The Avengers: Earth's Mightiest Heroes!" premiering at 11:30 a.m. ET inside Marvel Universe on Disney XD!

The nefarious Skrulls are stymied by Captain America's unwillingness to cooperate in this clip from Sunday's all-new episode of "The Avengers: Earth's Mightiest Heroes!" premiering at 11:30 a.m. ET inside Marvel Universe on Disney XD!

The Avengers encounter the Vision for the first time this Sunday at 11:30 a.m. ET inside Marvel Universe on Disney XD!

After the Red Skull's capture, Captain America learns the truth behind the Winter Soldier and must track his former partner down in order to stop the rest of HYDRA's Sleepers in this Sunday's all-new "The Avengers: Earth's Mightiest Heroes!" beginning at 11:30 a.m. ET inside Marvel Universe on Disney XD!

Spider-Man and Captain America team up to retrieve Cap's shield from the hands of Doctor Doom in this Sunday's all-new episode of "Ultimate Spider-Man," premiering at 11:00 a.m. ET inside Marvel Universe on Disney XD!

Captain America leads the fight against the Kree as the Avengers find a wormhole that could ultimately destroy the sun in this Sunday's episode of "The Avengers: Earth's Mightiest Heroes!" premiering at 11:30 a.m. ET inside Marvel Universe on Disney XD!

Watch an all new trailer from The Super Hero Squad Show now airing on Nicktoons every Saturday at 8:30AM!