While en route on a ship to the D-Day landings on the Normandy coast, British Lt. Col. John Wynter (Richard Todd) reminiscences about his romance with subaltern Valerie Russell (Dana Wynter), a woman he met while recovering from a war injury. Another soldier on the boat, American Capt. Brad Parker (Robert Taylor), also thinks about a woman he loves. It is revealed that Parker, too, is in a relationship with Valerie. Will either survive the bloody battle to see her again?