Marvel’s ‘Fantastic Four’ introduces powerful new characters to the MCU, and ends with tease for ‘Avengers: Doomsday’—here’s the ending and post-credits scene, explained.

First Steps director Matt Shakman and the writers know full well that fans were drooling to get a first look at the MCU version of Doctor Doom, and they tease the possibility of a Doom cameo throughout the movie.

First Steps. In a mid-credits scene he was seen allowing Sue and Richard's son Franklin Richards touching his face. But what is the larger impact of this scene leading up to Avengers Doomsday?