The Big Giant Head announces his plans to visit the Solomons in person to chastise them for their poor mission performance. Dick tells Sally to move back in, orders Harry to stop trying to father a baby with Vicki, and tries to prepare Mary for the arrival of his old "college chum", worrying privately that the supreme leader might not find her to have been a suitable use of his time. The family goes to the airport to meet the Big Giant Head (William Shatner), a drunken good-time charlie who's taken the name of "Stone Phillips", and who, in short order, moves in and takes over their lives. Dick quickly loses favor with Stone, who's unimpressed both by his choice of girlfriend and his leadership skills. Stone is, however, quite taken by everything about Sally, especially the length of her legs and the shape of her torso, and decides to make her the High Commander instead of Dick. Meanwhile, Harry keeps trying to avoid Vicki, but eventually he tells her that they need to cool the baby thi

Reeling in the aftermath of his demotion, Dick has to get used to taking orders from everyone else in the crew - even Harry - a humiliating experience that makes it difficult for him to perform sexually. Even though she didn't want to believe the family's taunts about the reasons for her promotion, Sally finally realizes Stone only made her High Commander because of her looks. Stone makes a pass at Albright, who declines and tells Dick, who's psyched that Stone's changed his mind about Mary. Stone goes to the prom with Tommy and Alissa, where a drunken Stone dumps a punchbowl over Alissa's head, then serenades the promgoers - including a bedazzled Vicki, who decided it was finally time to attend her junior prom - with "Close To You". In the high school hallway, Stone encounters Vicki and "beams" her up to his "bachelor pod" for some lovin'. The next morning, Vicki turns up pregnant, and her pregnancy develops to full term in a matter of moments. Stone, who had been planning to make

As Harm considers his future at JAG, he learns that Charlie Lynch - the ex-Navyman responsible for the murder of Annie, the abused child whose death still haunts Harm - has resurfaced, placing the little girl's twin sister, Dar-lin, in danger. Putting his career decision on hold until he closes the chapter on Lynch, Harm tracks him to a shipyard where the vicious killer is holding Dar-lin hostage. Overflowing with anger against all Lynch's grisly acts of murder, Harm finds himself in an intense stand-off with him that will leave only one man standing.

Mike tries to convince Nikki that nothing is going on between himself and Heidi Klum. The mayor doesn't understand that Janelle wants to break up with him. Janelle gets Mike to do it for her, but Nikki overhears Mike talking to Carter about it and thinks that Mike is going to break up with her. After Rags poops in his shoe, Stuart gives him to Heidi. Nikki breaks up with Mike. The next day, there is tension in the office. Carter tells Nikki the truth. She goes to Mike's apartment where Mike is hung over. As he goes back into his room to put on his pants, Heidi sits up in his bed...

Tonight, actress Suzanne Somers.