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?