Arlene Martel makes her final series appearance as Underground agent Louise Monet -- code name "Tiger." Having been captured by the Gestapo, Tiger is sentenced to be executed in Berlin. To rescue their curvaceous comrade in arms, Hogan and his crew must infiltrate -- and destroy -- a heavily guarded train. Even allowing for the fact that the villains are brutal Nazis who thoroughly deserve extermination, Hogan's callousness in disposing of them is quite startling for a situation comedy. Written by Laurence Marks, "Operation Tiger" first aired on November 29, 1970. ~ Hal Erickson, Rovi