Feature-length 'What-If' drama exploring the effects of a devastating cyber-attack on Britain's national electricity grid. Based on expert advice and meticulous research, Blackout combines real user-generated footage, alongside fictional scenes, CCTV archive and news reports to build a terrifyingly realistic account of Britain being plunged into darkness. The film plots the days following a nationwide power cut, as experienced by a cast of ordinary characters struggling to feed and protect themselves and their families. These eyewitness accounts reveal the disastrous impact of a prolonged blackout on hospitals, law and order, transport, and our food and water supplies. The programme casts members of the public from user-generated footage, weaving real-life archive with scripted drama to tell the story of how Britain could descend into chaos and anarchy without power.