McCrea plays Joe Meadows, whose only ambition as a Kansas farm boy was a life at sea. He moves to New York to try to get a job as a sailor, finds it more difficult than he thought, and meets Helen Brown, who falls for him and uses her feminine wiles to try to prevent him leaving.
In 1915 during the First World War, a British secret agent is killed while stealing secret Turkish plans for the Gallipoli Campaign but manages to pass his information to an American journalist.
Pierre Boucheron, alias 'The Rat' and a former underworld notoriety, is now living the high life as the kept man of Zelie de Chaumet. But when she learns he is planning to marry another woman, her vengeance pursues him into the murkiest depths of Paris...
The rich, amoral Zelie is married to Pierre Boucheron, "The Rat" - but her interest in another man is an open secret. Forced to defend his honour, the Rat takes refuge in his old domain of the Paris underworld. But even here he has a rival - and when murder is afoot, the sinister Morel's ambition...
