Ultimate Avengers: The Movie (2006)

In "Ultimate Avengers: The Movie" (2006), a top-secret group of superheroes is assembled to combat a global threat posed by an alien force known as the Chitauri. The team, including Captain America, Iron Man, Thor, Black Widow, and others, must come together to save the world from destruction. As they face formidable challenges and internal conflicts, they must unite and use their unique abilities to defend Earth against the invading enemy.