Doctor Doom tells his origin story to the Invisible Woman. We learn that he is looking for a cure for his long messed-up face. Elsewhere, Reed, Johnny and Ben are attempting to avoid Doom's death traps and must live long enough to fight Doom. But when this Doctor Doom is actually a Doombot in disguise, the three are forced to go on a time travelling adventure to retrieve a mysterious Greek coffin.
Note: This, including it's past and future episode are all direct adaptations of Fantastic Four Issue #5.