Documentary that reveals the secret story behind one of the greatest intellectual feats of World War II, a feat that gave birth to the digital age. In 1943, a 24-year-old maths student and a GPO engineer combined to hack into Hitler's personal super-code machine - not Enigma but an even tougher system, which he called his 'secrets writer'. Their break turned the Battle of Kursk, powered the D-day landings and orchestrated the end of the conflict in Europe. But it was also to be used during the Cold War - which meant both men's achievements were hushed up and never officially recognised.我看了一会，没动静，便用力推了一把石钟乳，打算继续前进，就在前进了一小段距离，快要攀到前面一点的那个石钟乳上的时候，我突然感觉脚上一紧，似乎有个什么东西抓住了我的脚，我正准备用矿灯照射去看看是什么东西，那东西却发出一股巨大的力量，我直接被拉倒在了竹筏上面，然后脚很快被拉近了冰凉的水里面。