Documentary following emergency response teams on their most extreme medical callouts.

In a rush hour collision, a 21-year-old motorcyclist is thrown headfirst from his bike, and an 80-year-old man suffers a cardiac arrest on his driveway.

A motorcyclist with a head injury must be put into an induced coma on the roadside, and a man who collapses with a heart attack is also showing symptoms of Covid-19.