The enigmatic Watcher warns the Fantastic Four of the impending arrival of the herald of Galactus, the Silver Surfer. They learn if he summons his master, all of Earth will be devoured.

As Galactus' plans unfold, the Fantastic Four try to reason with him, but it proves futile. The only way to defeat Galactus now, puts Johnny's life in mortal danger. Meanwhile, the Silver Surfer sees Alicia and his loyalties begin to change.

Doctor Doom steals the power of the Silver Surfer, becoming empowered with cosmic power. How can the Fantastic Four stop him now?

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.