First Steps" in the article below. Galactus, a skyscraper-sized, planet-eating cosmic being, may be the primary antagonist of "The Fantastic Four: First Steps," but no villain looms larger in the Marvel blockbuster than Doctor Doom (Robert Downey Jr.

First Steps" has a thrilling ending that teases Dr. Doom and where the MCU goes from here in "Avengers: Doomsday."

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,