Galactus ends up giving the Fantastic Four an ultimatum, telling a pregnant Sue that he'll spare Earth if she gives up her powerful unborn child to him. The group declines his deal, which further angers Galactus, sending him on a vengeful mission to both destroy Earth and take Sue’s child.

Franklin Richards is an important character for the future of the MCU – and if it’s faithful to the comics, he’ll be incredibly powerful.