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.

But, at the end of the day, Iron Man is able to rival superhumans and gods because of one thing: his suits - and Iron Man has no shortage. Ever since building his first suit of armor, Tony Stark ...

Robert Downey Jr.’s Iron Man has not only been the face of the ... group of terrorists in the Afghan desert. As basic as the Mark I suit was, it still packed enough firepower to blow through ...