At the end of World War 2, in a military-scientific endeavor called Operation Backfire, German rocket troops, under British control, built and test-fired three V-2 missiles at the former German naval station in Altenwalde, a district of Cuxhaven in Lower Saxony near the North Sea.. A V-2 rocket is seen igniting on its launch pad, rising into the air, and entering the stratosphere at a speed of 5 thousand kilometers per hour. Views of the rocket in flight. Finally, as the experiment ends, the V-2 shuts down and falls to the earth. (This footage is rare as it contains extra scenes not found in the official Operation Backfire Report film summary. It is also formatted for post-war German audiences.)