Annie Tortelli (Mandy Ingber) fills in at the bar for her mother-in-law Carla (Rhea Perlman), who is busy giving birth to twins. Complications ensue when the married Annie falls hard for Sam (Ted Danson). Meanwhile, Rebecca (Kirstie Alley), certain that new Cheers waitress Laurie (Bobbie Eakes) is the mistress of her boss Evan Drake (Tom Skerritt), explodes in a fit of jealous rage -- requiring a cover up of gargantuan proportions. ~ Hal Erickson, Rovi