In Berlin in 1961, an American soldier and a German engineer join forces to build a tunnel under the Berlin Wall in order to smuggle out refugees, including the soldier's East German girlfriend.
Production companies：
Cypress Point Productions
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Filmways Television
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Overview：In Berlin in 1961, an American soldier and a German engineer join forces to build a tunnel under the Berlin Wall in order to smuggle out refugees, including the soldier's East German girlfriend.
