The war's over but ex-POW Lt. Lawrence Gerard (Dick Powell) has a score to settle and he doesn't mean to do things by the book. His bride was in the French resistance; she was one of fifty freedom fighters murdered by shadowy Vichy collaborator Marcel Jarnac.
People tell him that Jarnac's dead but Gerard doesn't buy it. He tracks Jarnac's "widow" to Argentina and discovers that his quarry is not only still very much alive but has got some powerful - and dangerous - guardian angels. Gerard's mission is more urgent than ever - but who can he trust?