The Avengers: Earth's Mightiest Heroes is an American superhero animated television series by Marvel Animation in cooperation with Film Roman, based on the Marvel Comics superhero team the Avengers. The show debuted on Disney XD and online in the fall of 2010, starting with a 20-part micro-series that were later broadcast as five television episodes. In the second season, it was one of the inaugural shows of the Marvel Universe programming block alongside Ultimate Spider-Man.[2]