Brenda feels the clock is ticking and wants to have a baby sooner rather than later. Nate wants to think about it for a while. A lunch with her mother Margaret doesn't go particularly well - Margaret is rushed to the hospital. The event does give Brenda and Billy a chance to see each other again. George feels they should be preparing for whatever catastrophe may befall mankind. Ruth tells him of the old bomb shelter and he thinks it's just perfect. Claire's latest project gets raves from Billy and several of her classmates but she reacts badly when Russell claims to have originated the concept with her. She's thrilled though when she gets the opportunity display some of her work at a show. David learns that the man whose ear he's bitten is suing him for $500,000. There's one way he can get out of it but it involves Keith. At the funeral home, Rico and Nate deal with a particularly tragic case when four members of the Gorodetsky family - parents and two children - are killed in a car accident leaving only their eldest son to deal with it all. Nate is forced to admit to Lisa's sister Barb that he buried her in the desert.