The third season of That Girl is a pivotal one for aspiring actress Ann Marie (Marlo Thomas) and her ever-devoted boyfriend Donald Hollinger (Ted Bessell). In an era of great change, That Girl was a reflection of its time. Front-page issues such as spousal abuse, adoption, race relations and politics are woven into the high comedy. Guests include a who's-who of sitcoms: Penny Marshall (Laverne & Shirley), Larry Storch (F-Troop), Vic Tayback (Alice), McLean Stevenson (M*A*S*H), Florence Halop (Night Court), Mary Frann (Newhart), and Danny Thomas (Make Room For Daddy).