This week, Shirley enters into a burgeoning relationship with a handsome pediatrician named Mark McKenzie. All seems to be going well, but there's a cloud on the horizon: he's recently estranged from his wife and is splitting custody of his young son, Bobby, with her. When Laverne discovers by chance that Diana McKenzie is Shirley's spitting image, it becomes clear that Mark may be displacing his frustrated affections on Shirley because of the resemblance. Shirley is placed on a collision course with her "twin." Will she hold onto what she's got? Meanwhile, Laverne, Lenny, and Squiggy bond with Bobby and Laverne tries to launch her folk singing career at Cowboy Bills. On pod, we talk the technical craftsmanship on display, the lively characterizations, and Cindy Williams' dual role performance!