Eric's 17th birthday is coming up and he really doesn't want a party. Unfortunately, it's extremely obvious that Kitty is planning a surprise party against his wishes – she's even invited his older sister Laurie home from college for the event. Eric enlists Laurie's help in calling off the party while Kelso naively tries to attract her interest. And Donna, who's unsure about the state of her relationship with Eric, gets advice from Jackie on what to get him for a gift.