The 276th and final episode of the original 1950s version of Dragnet is an adaptation of a two-part radio drama, originally heard on January 3 and 10, 1952. An ex-convict tips off Friday (Jack Webb) and Smith (Ben Alexander) about a huge shipment of Mexican heroin being smuggled into LA by a New York narcotics ring, fronted by a guy named Red. Going undercover, Friday poses as an interested buyer, risking life and limb to get the goods on Red and his cronies. But even after the "small fish" are rounded up, Friday must set up a trap for the elusive "Mr. Big" who is the real brains of the outfit. ~ Hal Erickson, Rovi