2012 is the 75th anniversary of the 999 emergency telephone number in the UK. The volume of calls has jumped by 60% in the last generation, with 31 million 999 calls received in 2011. Filmed 24/7 with police, fire and ambulance teams in Blackpool over six weeks, from the moment calls are received, this new 10-part documentary series shows how society is changing through the eyes of the emergency services on the front line.