Life and death - our paramedics deal with it daily. Ride along with the crews and see what they see in this heart-stopping show.
Follow the Rapid Response team as they try and save the day.
A one in a million freak nail gun accident defies belief; a man is reported unconscious on the street; and every second counts in the race to save a heart attack victim.
The team are called to a drug-fuelled attack on a street; one man's racing heart has a family on edge; and a high speed spin out on a motorway leaves a bride waiting at the altar.
The fear of needles grips a patient; a woman is trapped in her car surrounded by live high voltage power lines; and gate crashers attack a teenager with bottles.
When a cyclist collides with a truck, his wife rushes to his side, fearing the worst; and tempers flare after a bus rear-ends motorists.
The St John team are called to a patient arrested by police; a 111 call after the fallout from a disturbing domestic; and mystery surrounds a teenager knocked down on a playground.
The team are called to a brutal street brawl, a family's car careers off an open road and mystery surrounds an unidentifiable man found collapsed on the motorway.
A mother calls 111 fearing for her son's life, the team are called to disturbing domestic incident and a scooter rider is hit by a motorist.
A random and cowardly attack on a party goer leaves a young man badly injured and it's a race against time to reach a person suffering a heart attack.
Final: A woman calls 111 fearing for her husband's life, the Rapid Response crew are called to the address of a man at risk of bleeding out; and a motorist is badly injured and trapped in a car wreck.