June McCarthy has unwittingly aided an undercover Nazi naval officer with acquiring a "mother ship" for German submarines in the Atlantic.

Top Cast

Carole LandisJune McCarthy

Henry WilcoxonCaptain Jimmy Madden

Onslow StevensCarl Cutler

Kathleen HowardMaggie Clancy

Wally RairdenBlake, 3rd Mate

Sven Hugo BorgSven

Henry VictorCmdr. Bulow

Roland VarnoLt. Schmidt