Natural disasters are raging on across Earth. The Fantastic Four head off into space, finding Thor and the source of the problems, Ego. The Fantastic Four and Thor can't stop them on their own and will have to rely on one person: Galactus.

Depressed over Crystal, Johnny meets a girl named Frankie Raye, who possesses the same powers as he does. Meanwhile, Terrax attacks Manhattan and demands the Fantastic Four fight Galactus. The team learns from Galactus that Terrax betrayed and poisoned him. The poison takes it toll and Galactus will have to feed on Earth.