Dick's Big Giant Headache: Part 1 (1999)

Because he feels the Solomons haven't done well on their mission, the Big Giant Head comes to Earth to personally chastise them. Thinking they might have become too human, Dick orders Sally to move back in and he tells Harry not to have a baby with Vicki. He also tries to prepare Mary for the visit of his old "college friend" because he's worried the Big Giant Head might think Dick has wasted his time with Mary. Meanwhile, Tommy and Alissa are starting preparations for their junior prom.