Paramedics respond to reports of a patient in cardiac arrest. But when they arrive, there's no answer at the door. A boy has an epileptic seizure during a PE lesson.

Paramedics treat a man who's been stabbed in the leg and the head. Paramedics also treat a man who's struggling to breathe after having a triple heart bypass operation, and a woman whose rare genetic condition causes her to have seizures.

A man has collapsed in the street and is in cardiac arrest. A woman in severe abdominal pain has a panic attack as the paramedics try to get her breathing under control. And a man is vomiting blood and has a fast heart rate.

Paramedics treat a man who's high on drugs and has a badly broken arm. A first day at work ends badly for a member of security at a nightclub. A man who's on blood thinners falls off his mobility scooter. And a woman is showing signs of sepsis.

Paramedics treat a woman who's in pain after giving birth a week ago. A man who fell has pain in his side and is having difficulty breathing. And a mum calls 999 after her toddler who's been ill for several days proves difficult to wake.

Paramedics treat an aggressive man who may have had a stroke. A nine-year-old boy is struggling to breathe and is complaining of stomach pains. And paramedics are called to a man and a woman who've both passed out in the street.

Paramedics treat a man who has injured himself while wheeling a push bike home and is in agony. While out shopping, a man with a history of strokes loses the ability to walk. A daughter discovers her mum has died suddenly at home and calls for help.

Paramedics are called to a man with chest pains, who's in so much discomfort that he can hardly speak. A woman with liver disease has fallen over and ripped her ear. And an 11-year-old boy who was playing on his bike has fallen, landing on his face.

Paramedics are called to a patient with hypoglycaemia, a young woman who is in agony with severe stomach cramps, a feverish toddler and a man with chest pains.

Paramedics treat a man who's been stabbed in the chest and slashed across the head. A young man may have life-threatening sepsis. And a young woman who has diabetes has blood sugar readings that are so high they're off the paramedic's chart.