Doomsday connects to The Fantastic Four: First Steps? A key mid-credits scene introduces a mysterious presence, hints at a growing multiversal threat, and sets up one character’s deeper interest in Franklin Richards.

First Steps, I have crafted a theory that Avengers: Doomsday will repeat Infinity War‘s opening scene. Avengers: Doomsday‘s MCU story has been well and truly teased thanks to projects like Thunderbolts* and The Fantastic Four: First Steps.

Despite one MCU hero not being confirmed for the cast of Avengers: Doomsday, they might be a major part of Doctor Doom's plan.

Uncover the latest rumors and detailed plot leaks about 'Avengers: Doomsday', featuring the Avengers, Fantastic Four, and Captain America uniting against Doctor Doom. Get insights on the first act and the multiversal threats that await our heroes!

Based on how First Steps ends, Doomsday will probably open with Doctor Doom kidnapping young Franklin Richards and making a beeline for Earth-616, forcing Reed and his family to pursue. Reed and Vanessa Kirby’s Sue will be desperate to reunite with their son, forming what will surely be one of the key emotional throughlines of the film.

How will Marvel Studios reconcile Franklin Richards' abilities with the established power levels and needs of the MCU? Avengers: Doomsday Raises a Big Question About the Fantastic Four - ComicBook.com