During the Cold War, the Soviet Union captures US pilot Gary Powers after shooting down his U-2 spy plane. Sentenced to 10 years in prison, Powers' only hope is New York lawyer James Donovan, recruited by a CIA operative to negotiate his release. Donovan boards a plane to Berlin, hoping to win the young man's freedom through a prisoner exchange. If all goes well, the Russians would get Rudolf Abel, the convicted spy who Donovan defended in court.