The Sub-Mariner has declared war on the surface world as vengeance for what Mister Fantastic has done to Sue and Franklin. The Fantastic Four springs into action to fight Namor and his band of sea monsters! With the help of Thundra, can the FF protect the shore and its inhabitants while attempting to save the marriage of Reed and Sue?

The Sub-Mariner has declared war on the surface world as vengeance for what Mister Fantastic has done to Sue and Franklin. The Fantastic Four springs into action to fight Namor and his band of sea monsters! With the help of Thundra, can the FF protect the shore and its inhabitants while attempting to save the marriage of Reed and Sue?