Over the course of Tony Stark's (Robert Downey Jr.) Marvel Cinematic Universe timeline, he dons numerous Iron Man suits. While these weaponized armors are designed to fit the more grounded, real ...

Following is a transcript of the video. 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.