November, 1942 - Regan is sent by the OSS to join the underground in a France struggling to survive under German occupation. She is assigned to gather information on the infamous wolf packs; U-boats that travel in groups to hunt down and sink Allied warships. But she begins to suspect that her French contacts may be working against her.

When Regan's mission takes an unexpected turn, her only thought is to return to the man she left behind and her only fear is that she might not make it out of France alive.