Clark Gable, Gene Tierney, and Theodore Bikel star in this Cold War melodrama filmed in England. American journalist Philip Sutherland (Gable) desperately tries to retrieve his Russian ballerina bride Marya Lamarkina (Tierney) from behind the Iron Curtain. Stymied by bureaucracy on both sides, Sutherland attempts to plead his case directly to Soviet bigwig Molotov, in London for a peace conference. When this too fails, Sutherland aligns himself with an Englishman (Richard Haydn) in a similar predicament. Together, the two men formulate a daring escape plan, which could spell instant doom for both their wives and themselves if it doesn't work.