This story discusses major plot developments, including the ending and post-credits scenes, in "The Fantastic Four: First Steps," currently playing in theaters. From the very first scene, the question of what will become of the child of Reed Richards (Pedro Pascal) and Sue Storm (Vanessa Kirby) looms over "The Fantastic Four: First Steps.

The Marvel Cinematic Universe officially has its Fantastic Four. Or should we call it five? The new film, which is in theaters now, is largely centered around the fact that Reed Richards (Pedro Pascal) and Sue Storm (Vanessa Kirby) have a child named Franklin.

In a 1982 arc by John Byrne, Franklin gets frustrated trying to solve a Rubik’s Cube and uses his powers to age himself into an adult body, though he couldn’t actually gain more emotional maturity. He winds up going back to being a kid, placing restrictions on his own abilities to allow him to have something of a normal childhood.

There’s a lot of promise in this version of The Fantastic Four; a worthwhile cinematic endeavor unlike its predecessors.

First Steps director Matt Shakman addresses a big Sue Storm moment in the movie's final act and reveals original plans for Franklin Richards' Marvel Cinematic Universe's introduction.

First Steps features what might be the most important MCU mid-credits scene since Thanos first appeared in The Avengers. Not only does it introduce one of Marvel's most iconic antagonists, it also teases why the Fantastic Four might have jumped to the main MCU universe,