Earth's Mightiest Heroes! The Avengers are assisting SHIELD in tracking down a series of arms dealers, international criminals and terrorists who are somehow flying easily below SHIELD's radar, which is no mean feat.

Ripped from their world by unknown forces, the heroes of two universes must defeat the villains from the opposing universe.

Peter Parker, a nerdy kid and Miles Morales, a popular athlete, are good friends just waiting for senior year of highschool to be over. During a field trip to the Oscorp Corporate Headquarters and Research Center, something happens that puts events in motion that will flip their lives upside down.