In the final months of World War II, prisoners of war in Colditz began building a glider to fly out of the camp. However the war ended before they could try it. Now Dr Hugh Hunt, an engineer from Cambridge University, leads a team of aeronautical engineers and carpenters who build a replica glider from the original plans, using only the materials and improvised tools that the POWs used. They then fly it from Colditz to see if the escape would have succeeded.—Anonymous