"Avengers: Earth's Mightiest Heroes" is an animated television series that aired from 2010 to 2012. The show features a team of superheroes, known as the Avengers, who come together to protect the world from various threats. Key characters include Iron Man, Thor, Hulk, and Captain America, each bringing their unique abilities to the team. The series consists of two seasons with a total of 52 episodes. It showcases the Avengers battling iconic villains such as Loki, Ultron, and Kang the Conqueror. The show is known for its engaging storytelling and character development, appealing to both young audiences and longtime fans of the Marvel franchise.