Ambulance: Code Red

It's a race against time to save joiner John after he suddenly collapses from a cardiac arrest while working in a client's house. And a man's day turns into a disaster when an industrial-sized printer lands on his head, leaving him unable to move.

Medics rush to a 60-year-old woman with suspected multiple injuries, trapped in her car, and to a 36-year-old knife attack victim, who has extensive injuries to his neck and face. And a man gets his foot wedged between his car and a ticket machine.

There's major trauma when a hay bale lands on a farmer's head in a remote location. Plus, a battle to save a man in cardiac arrest, and a 76-year-old woman has fallen down the stairs.

A motorist is stuck in his car and unable to move his legs, a man in a hard-to-reach rural location has cut his leg with an angle grinder, and an 80-year-old woman has fallen down the stairs at home and is struggling to breathe.

Patients in need of emergency assistance include a man in cardiac arrest at a karate club, a 83-year-old woman with a suspected broken thigh, and a truck driver trapped in his cabin.

A man has been crushed by a forklift truck and sustained a serious leg injury, and a 22-year-old woman is trapped in her car with a badly injured ankle after a high-speed collision.

High-octane medical emergencies including a man found collapsed in a hotel room, a head-on collision between two motorcyclists, and an 11-year-old who's taken a tumble from his scooter.