Itismid-1939andbothGermanyandEnglandarepreparingforaninevitableconflict.ProfessorHoratioSmith,aneffeteacademic,askshisstudentstocomewithhimtothecontinenttoengageinanarchaeologicaldig.WhenhisstudentsdiscoverthattheprofessoristhemanresponsibleforsmugglinganumberofenemiesoftheNazistateoutofGermany,theyenthusiasticallyjoinhiminhisfight.Butthingsarecomplicatedwhenoneofhisstudentsbringsamysteriouswomanintotheircircle,awomanwhoissecretlyworkingfortheGestapo....