Every hour of every day, the Greater Manchester Fire and Rescue Service is on the front line – on call to deal with fires, emergencies and accidents. The largest fire service in the UK outside of London, the Manchester brigade responds to over 52,000 incidents a year. There is no such thing as an average day for its crews, with no incident or fire ever the same. Inferno 999 goes to the heart of perilous firefighting situations as it follows the daily lives of Manchester's fire crews.This series gains unique access to the work of these dedicated men and women with the help of pioneering camera technology. Firefighters are rigged with cameras housed in heat-resistant casing to allow an unprecedented view of their death-defying exploits. With the help of these powerful images, the series reveals the hazardous conditions and extreme pressures fire officers face, recording the frightening reality of their working lives.