Pete Sherman an American prisoner of war being held in Japan during World War II is enlisted by his captors to take part in broadcasts designed to weaken Allied morale. He manages to escape and with the help of a war correspondent from neutral Ireland by impersonating a Swedish journalist killed in a recent bombing raid. He is also aided by Greta, the sister of the dead man. Put in touch with the anti-government underground, and he hatches a plan to kidnap Tokyo Rose.