6. Operation: Rebirth

Operation Rebirth

In the mid ’90s, Captain America was not in a good state, but writer Mark Waid thankfully revitalized the franchise with this superb arc which saw the Red Skull of all people forced to ask for Cap’s help in stopping a resurrected Adolf Hitler. It may sound in bad taste, but it would allow Steve Rogers to achieve something he never got to do in World War II: stop one of the world’s most evil tyrants.

For the Marvel Cinematic Universe, it would perhaps be better for Hitler to be replaced by the Skull, especially as it appeared as if he was sucked into the Tesseract at the conclusion of Captain America: The First Avenger (in Operation: Rebirth, it was Hitler’s consciousness trapped within the Cosmic Cube). Some changes could turn this great arc into an even greater movie.