Namor, the Prince of Atlantis falls for Sue Storm, kidnaps her and takes her to Atlantis to marry her.

The Skrulls are an alien race that plans to invade Earth and the first step in their plan is to discredit the Fantastic Four as the good guys.

An Alien who calls himself The Watcher contacts the Fantastic Four to warn them of an incoming doom - Galactus, a unique terrifying gigantic nearly indestructible alien humanoid who devours whole planets, is coming to feed on Earth.