Inside Out (1975)

Thirty years after the end of WW2 a team of ex-GIs and ex-German soldiers plans to go behind the Iron Curtain, in Soviet controlled East Germany, in order to locate and retrieve a hidden Nazi treasure.However, the only man who knows the exact location of the Nazi loot is a Nazi war criminal who's imprisoned in the Siegfried military prison.Our team of treasure hunters is not discouraged by the slim odds of ever retrieving the loot.First, they have to get to the imprisoned Nazi official who buried the treasure at the end of the war at the order of his superiors.Second, they have to make the Nazi talk and reveal the exact location of the loot. Third, the team has to penetrate undetected in the Soviet occupied area of East Germany,retrieve the treasure and make off with it across the border without alerting the Soviets.