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.

Sometimes, an Iron Man suit is considered powerful because it ... The suit is made even better when nano particles are ...

The logline continues to talk about the shields of the young superheroes: "In addition, Iron Man has a Nano-Shield ... each owning cool armored suits. As Marvel is set for the release of its ...