The Red Menace (reissue title Underground Spy) is a 1949 anti-communist film noir drama film directed by R. G. Springsteen starring Robert Rockwell and Hannelore Axman.

An ex-GI named Bill Jones (Robert Rockwell) becomes involved with the Communist Party USA.

Republic Pictures chose unknowns for the cast and many made their film debuts.

[2] As well as playing Inspector O'Toole, Lloyd G. Davies was also the film's narrator.

[4] The film performed poorly at the box office and was withdrawn from release after several months.