"The Avengers: Earth's Mightiest Heroes" is an animated television series that premiered in 2010. The show features a team of superheroes, including Iron Man, Thor, Hulk, Captain America, and Black Widow, who come together to protect the world from various threats. Each episode showcases their teamwork and individual abilities as they face villains like Loki and Ultron. The series is known for its engaging storytelling and character development, appealing to both children and adult fans of the Marvel Comics universe. It ran for two seasons, concluding in 2012, and is praised for its animation style and faithful representation of the original comic book characters.