It's 1942 and America finds itself in the early stages of fighting two different wars in two different regions of the world. Frank Sweeney is an American pilot who hails from St. Paul, MN. He is the remaining son of Michael Sweeney, a prominent businessman and former police detective. Frank is preparing to battle the Nazis in the skies over Europe. Those plans are interrupted by Bill Donovan, the head of the newly formed O.S.S., an intelligence and spy organization designed to help America in these two distinct battles. Donovan and his assistant George Parker, who happens to be Frank's godfather, visit Frank in England and give him a mission that is borderline suicidal. It involves a top secret project that the Nazis are working on that will almost single handedly ensure Germany's victory in the war. Frank's objective is to remove the top scientist from the project, dead or alive, thus delaying the Nazi's schemes to develop a permanent and war altering weapon. Sent into Germany with no training and virtually no tools, Frank is truly on his own.