Life seems to finally be taking on a semblance of normalcy for the Fantastic Four, although Sue and Johnny fight over her not-so-secret crush on Namor. Meanwhile, Dr. Doom swearing vengeance for his defeat at the hands of the Fantastic Four, recruits The Sub-Mariner to aid in the destruction of the male members of the team. The Fantastic Four had difficulty beating each of these villains on their own - how can they possibly stand up to the combined forces of the Diabolical Duo?
Namor intrudes inside the Baxter building. Then Doom transports the Baxter building in to space. Namor has second thoughts about the team-up, and turns against Doom. There`s a battle and Doom is flung in to space.