Anne's college boy friend reenters her life; guilt takes its toll on working mother Lindley; and Sam asks for Joe's assistance in a scheme to help Kay "sell" herself in her real-estate job.

Joe believes David's social-studies teacher has gone overboard to instill a fear of nuclear disaster in his students; Sam sees Kay's visiting mother as an aging hippie and fears Kay could follow in her footsteps; and Lindley invents an infant walker.