Avengers Assemble! Incredible art brings 6 Endgame theories to life

What happened to Captain America? These comic book-inspired panels may hold the answer.

It’s been years since the Avengers: Endgame, but Marvel fans are still debating some of the movie's loose threads.

Captain America’s farewell, in particular, has led to some fun fan theories. Did he encounter Red Skull? And what happened to old man Steve Rogers?