In the conclusion of a two-part story, Friday (Jack Webb) and Smith (Ben Alexander) rush to the small sanitarium where hoodlum Gus Valentine, recuperating from two previous attempts on his life, has been shot and killed. Normally, this would be a case of "good riddance to bad rubbish"--except that an innocent nurse has also been killed in the crossfire. The trail of clues leads the detectives to the girlfriend (Virginia Gregg) of one of the triggermen. In the episode's highlight, important evidence is provided by an elderly witness to Valentine's murder, played by the ever-venerable Burt Mustin. This episode is based on the Dragnet radio broadcast of March 30, 1950. ~ Hal Erickson, Rovi