Code Breakers

Code Breakers: Alpha is a futuristic, high-stakes thrill ride. In a post-apocalyptic future, humanity survives within a single domed city run by a shadowy benefactor known only as The Family. Each week the death lottery claims more lives and Gerry Cardle, head of the lottery, inexplicably finds himself the next on the list. Something's wrong with the system. A deadly artificial intelligence has breached security. Gerry has just 7 days to live.

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.

Experts in code writing and breaking tell tales of heroic risks and cat-and-mouse secrecy, where science meets deadly adventure and everyone from queens to soldiers to everyday citizens can pay the price.