Synopsis: On one night in August 1961, a few railway cars and a lot of barbed wire were moved into position in Berlin, dividing East Germany from West. It was a barrier that would be extended and become increasingly more sophisticated over the 18 years of its existence, a technological counter to each escape attempt. In this feature length special, History uses a computer imagery to reconstruct how the wall grew from a meager obstacle to a 97 mile barrier of concrete slabs, watchtowers and guards. It charts the rise and then the sudden fall of the wall on Nov.9, 1989.