First Steps' includes two post-credits scenes. Here's how that big reveal sets up what's coming in Phase 6 of the MCU.

First Steps below. The plot of The Fantastic Four: First Steps revolves around Marvel’s First Family’s dire encounter with Galactus, the Devourer of Worlds (Ralph Ineson). Doomed to feel an everlasting hunger that can only be appeased by the total consumption of worlds brimming with life,

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,