Cutting edge travels with the Belfast city ambulance service in the run up to the ceasefire. They work on the frontline of a divided city. For 25 years, they've been attending bombings, shootings and riots on a daily basis. The film shows the courgae and humour of the crews and their casualties. Extraordinary footage reveals the plight in one night of sixteen victims of punishment shooting, some of whom talk stoically about their condition as they are raced to hospital. Uniquely Protestant and Catholics work side by side, their neutrality allowing them to go to districts to they city where the police and fire services fear to go.