The animated television series The Avengers: Earth's Mightiest Heroes first premiered on Disney XD, introducing audiences to this version of the Marvel superhero team.
The final episode of The Avengers: Earth's Mightiest Heroes aired, concluding the storyline and production of the series.
Tony Stark and Hank Pym begin developing Ultron, an advanced artificial intelligence intended to protect humanity, but the AI soon becomes a threat to the team and the world.
Ultron activates and turns against its creators and the Avengers, putting the team to the test as they work together to stop the rogue AI and save humanity.
Loki returns to Earth with new schemes, forcing Thor and the Avengers to strengthen their alliance and protect Earth from another Asgardian threat.
The Avengers discover a secret Skrull invasion on Earth, leading them to uncover a deeper intergalactic conspiracy and fight to defend the planet from alien shapeshifters.
Steve Rogers is awakened from decades-long suspension and joins the Avengers, bringing his leadership and experience to the team.
The Avengers become embroiled in the massive conflict between the Kree and Skrull alien races while protecting Earth from being caught in the crossfire.
Following several setbacks, the original team recruits new members including Hawkeye and the Wasp to bolster their ranks and abilities.
The Avengers face the Masters of Evil, a formidable team of villains led by Baron Zemo, testing the heroes' unity and strength.
After defeating major threats and securing Earth's safety, the Avengers establish themselves as the planet's premier superhero team, inspiring hope worldwide.
