A prowler has been reported in the neighborhood, so Lucy (Lucille Ball) and Viv (Vivian Vance) decide to learn how to defend themselves. This decision leads to a memorable afternoon at a judo academy, presided over by real-life martial arts expert Louis Coppola. Despite the usual slapstickery, the girls become quite adept at judo--but their new-found athletic prowess inevitably backfires, and at the worst possible time to boot. ~ Hal Erickson, Rovi