In Wolverhampton, a machine operator has had a workplace accident, and his hand is crushed in an industrial press. The machine can't be released and, after 90 minutes, the man is still stuck. If he can't be freed, he could quickly develop life-threatening complications. While engineers and the fire service make last-ditch efforts to release the press, the critical care team prepare to amputate the man's limb in order to save him. One of the newest members of the critical care team, paramedic Ben Rean, is on shift with one of the most experienced — critical care practitioner Faye Pollock. They're called to a cemetery in Oldbury, where a man is reported to have collapsed while visiting a grave. They find 76-year-old Trevor in cardiac arrest and must perform life-saving treatment. With a combination of CPR and electric shocks with a defibrillator, they manage to restart Trevor's heart just as the ambulance arrives at hospital. In Birmingham, a terrified caller alerts 999 to a man being vi