C.R. MacNamara (James Cagney) will do anything to get a promotion within the Coca-Cola company, including looking after boss W.P. Hazeltine's (Howard St. John) rebellious teenage daughter, Scarlett (Pamela Tiffin). When Scarlett visits Berlin, where C.R. is stationed, she reveals that she is married to a communist named Otto Piffl (Horst Buchholz) -- and C.R. recognizes that Otto's anti-establishment stance will clash with his boss's own political views, possibly jeopardizing his promotion.