Stevens joins the FBI during WW II when one of his buddies is murdered by Nazi secret agents working in America. After a few more G-men are bumped off, the Federal agents trace the Nazis to a hotel in New York City where they have set up headquarters. The FBI successfully raids the joint,
but some of the head Nazis escape to an upstate hunting lodge. Stevens is right on their heels, of course, so the the remaining goose-steppers are captured after a rousing gunfight.