In the first episode of a two-part story, the staff of "The Alan Brady Show" is invited to put on a performance for the men in the state penitentiary. The convict arranging the show is Lyle Delp (
Don Rickles), who turns out to be an old friend of Rob (
Dick Van Dyke) and Laura (
Mary Tyler Moore). In flashback, Rob recalls how he and a pregnant Laura first met Lyle when the hapless habitual criminal tried to hold them up at gunpoint (or rather, "comb-point") in a stalled elevator. ~ Hal Erickson, All Movie Guide