Philip Scott, the boss of a toy company, is secretly also the chief of a British spy organization. Scott's cover is destroyed when enemy agents kidnap his girlfriend to force him to reveal the identities of his fellow spies.

Paul Hubsschmid is Paul Finney aka Upperseven, master of disguise. He's out to stop a diamond smuggling operation which fronts for a missile building project.

A jewel thief crosses paths with a woman carrying a briefcase that the Americans, the Russians and the Chinese all want desperately, so he goes on the run with her figuring that what's inside the case has to be way more valuable than anything he could steal on his own.