The Fantastic Four (1967)

The Watcher fails to prevent the Silver Surfer from coming and summoning Galactus. Susan assists the unconscious Surfer and he begins to think differently. The Watcher has a plan only Johnny can undergo. Reed and Ben sabotage Galactus' Earth draining machine and the Silver Surfer arrives to battle Galactus. Johnny gets back with the weapon that makes Galactus see reason not to destroy the Earth.