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.

The Iron Man suits have captivated audiences across the Marvel Cinematic Universe, evolving across over a decade's worth of films into ever more dazzling and formidable feats of technology.

The suit will only fit people between 5ft 6 (164cm) and 6ft 1 (185cm). And that doesn't even take into account the fact that Iron Man Factory hasn't licensed the design or name from Marvel Studios.

Tony Stark is doing what he always does when he’s trapped, and his back is against the wall, building a new Iron Man suit. However, this suit isn’t for him, but one of the Fantastic Four.