Narrator: If you look at Iron Man's first suit, the Mark 1, and compare it to the hero's nanotech suit from "Avengers: Endgame," a lot has changed. But it's not just the technology in the world of ...

It's a callback to Tony Stark building his first suit in 2008's "Iron Man," which kicked off the entire MCU. One of the main plot points of "Endgame ... the effects of the snap and bring everybody ...

And many of them proposed ways of reviving Iron Man without actually ruining Endgame’s legacy ... s AI could even power an autonomous Iron Man suit, though that might spoil his MCU legacy ...

In 2008, a film called Iron Man kicked off the Marvel Cinematic Universe (MCU) and this week, a major chapter comes to a close. Avengers: Endgame will ... due to "the snap" - Thanos's deadly ...