In the spring of 1941 resistance to the Nazi forces occupying France is growing, and the German forces begin to counter-attack. Their principle target is the group headed by the beautiful Liane de Gruchy, already wanted for the slaying of a Gestapo officer. With this in mind they infiltrate one of their agents into the group, hopefully to lead it to destruction. Unaware of this, Liane and her family, in league with her lover, English security officer James Barron, pursue their own agenda of sabotage and subversion until the bloody climax.