CBR

Avengers: Endgame includes a big nod to one of Captain America's most controversial storylines. 1 / 9

Cap has to convince an elevator full of Hydra agents to give him the Mind Stone. 2 / 9

In a last-ditch effort, Steve leans over and whispers "Hail Hydra" to Jasper Sitwell. 3 / 9

This moment mirrors Marvel Comics' "Hydra Cap" storyline 4 / 9

Captain America: Steve Rogers #1 rewrote Cap's history and made him a longtime Hydra agent. 5 / 9

Cap's Hydra allegiance was infamously revealed on the last page, pictured here. 6 / 9

The real-world implications of turning Cap into a fascist figure caused debate to rage for months. 7 / 9

Endgame's Cap maintains his status quo, but those agents really believe he is "Hydra Cap." 8 / 9

Cap's "Hail Hydra" utterance is simply a clever nod to a major Marvel Comics moment. 9 / 9