Nick Knowles returns with more life or death situations. A driver opens his door suddenly sending a motorcyclist into the path of a bus. A pregnant woman calls 999 after suffering huge blood loss.

The Royal Navy save 14 people from a yacht that has lost its mast amid a mid-Atlantic storm. A schoolgirl sees her mum's car on fire outside the school and fears she is still inside it.

Two workmates leap into a harbour to save a drowning man, on her way home from work a mum falls asleep at the wheel and a hiker captures a dramatic moment when a cliff collapses in front of her.

A daughter dials 999 when her father suffers a cardiac arrest while her sister battles to save him. Coastguard volunteers try to save a climber who has fallen off a cliff in Wales.

When a small plane loses engine power a day trip over the Dorset coast turns into a terrifying ordeal. Three young lads call for help when when two of them become trapped in a mountain of mud and begin to sink.

An 8-year-old boy suffers a freak accident while riding on his scooter and a doctor is forced to operate on him at the scene of the accident. Holidaymakers run for their lives when a cliff collapses at a Greek island beauty spot.

When a 79-year-old celebrates his birthday with a tandem skydive the main chute fails to open. A young mum suffers a cardiac arrest following an asthma attack. A taxi driver comes to the aid of a customer whose flat is on fire.

A drone searches for a British climber who has gone missing in the Himalayas. A mother panics when she sees a news picture of her son's wrecked car and she can't contact him.

A father of two calls for help as what appeared to be a sore throat becomes sepsis. A historic home and restaurant is engulfed in flames, but a young man sleeps through the fire alarm.

Pensioner Brian tells how he became trapped up to his neck in a slurry pit until a former policeman rescued him. A mum and her young daughter describe how their car plunged off the road into a water filled ditch.

1,000's of football fans applaud as helicopter medics land on the pitch and try to save the life of a club steward. A young mum describes how a huge lorry ploughed into stationary traffic.

2 scuba divers describe how they found a WWII bomb under a pier. A steward at a cycling event tells how a support car drove straight at him. A mother snatches her child from the path of a car.

A fisherman describes being washed overboard at night off the south coast, a history buff tells how he hauled a live grenade out of a canal, and a student relives the moment when a massive tree struck her car during a storm.

A base jumper misjudges his launch and crash-lands on a rocky beach. A mother relives the moment her young daughter fell from her pony during a competition and was trampled underfoot.

Footage from a glider pilot captures him crashing and getting stuck in a tree and the operation to rescue him. CCTV records a car that fails to stop at a notorious crossroads.

A schoolboy recalls the day he was horrifically injured after falling off his BMX bike while performing tricks. A young rider describes the moment she was thrown from her horse during an amateur race.

A schoolgirl recounts how she saved the life of her stepfather by performing CPR. An uncle and niece are filmed as they are rescued by a ferry after their dinghy capsized.

A 60-year-old woman attempting to row across the Atlantic Ocean has to be rescued when her boat begins to fill with water. An animal lover falls down a sewer as he attempts to rescue his pet dog.

A para-glider crash lands onto a wall in the Peak District. A son witnesses his mother crash her bicycle. A cameraman filming a storm almost ends up a victim himself.