England, 1763. After being convicted of a crime, the young and beautiful Abigail Hale agrees, to escape the gallows, to serve fourteen years as a slave in the colony of Virginia, whose inhabitants begin to hear and fear the sinister song of the threatening drums of war that resound in the wild Ohio valley.
The (O)ffice of (S)trategic (S)ervices' Cmdr. Brady (Patric Knowles) forms Operation "Applejack" (based on a composite of actual incidents during WWII) and sends Lt. (j.g.) Philip Masson, U.S.N.R. aka John Martin as spy Philippe Martine (Alan Ladd) along with Miss Ellen Rogers posing as her college roommate, Madame Elaine Duprez (Geraldine Fitzgerald) and Robert Bouchet, Tech Sgt., A.U.S. as Albert Bernardito (Richard Benedict) to acquire secret Nazi plans. After nearly getting caught they succeed and get new identities. However they discover a secret that could change the war and risk their lives to get the information back to London before it jeopardizes their lives.
Nightclub boss Malone puts off his wedding anniversary trip because an old woman claims to have overheard plans to rob the nightclub. But the old woman, Mrs. Cowdy, has a scheme of her own.
