A young couple out for a walk are struck by an out-of-control car, a young mother dials 999 when her baby is unresponsive and a teenage motorcyclist meets a 4x4 head on.

When a film extra is taken ill at the top of a tower at Worcester Cathedral a coastguard crew try to save him, a mother and daughter flee a fire in their flat and pub customers flee an out-of-control lorry.

An adventurous old-aged-pensioner is lost on Ben Nevis in a howling snow storm, and a van driver skids on black ice to end up teetering on the very edge of a motorway bridge.

A woman is trapped in her loft conversion bedroom while a fire rages below her. Rescuers race against the tide to save a young boy who has fallen off a pier while chasing his dog.

A base jumper's parachute gets tangled up when he leaps off Beachy Head, passers by come to the aid of a fitness trainer collapsed in the street and a fire near a petrol station causes staff and customers to flee.

A veteran saloon car race driver is involved in a horrific crash on the finish line, two friends fish a hand grenade out of a river, and a young boy alerts his mum to a car fire.

A group of visitors, including a mother and newborn baby, are trapped 50 metres up at the top of a popular tourist attraction, and there are terrifying consequences for a young rock climber when he disobeys his father.

A top British surfer rides the wave of his life but then it all goes wrong, two little girls call for help when their dad collapses, and a mum and daughter suddenly find their tumble drier on fire.

A group of hikers are enjoying a day on Dartmoor when one falls, landing on rocks below, and a young couple and their baby flee a hotel fire after a fellow guest alerts them to the danger.

2 young men are attempting to set a world record rowing the Atlantic when a freak wave capsizes their boat, and a family day out in the snow almost ends in tragedy when a dad has a sledging accident.

Nick Knowles introduces the story of a father and his 12-year-old daughter lost overnight on a glacier in freezing temperatures. Also, a man wakes to find his canal barge is sinking.

Nick examines the extraordinary rescue of a young man swept out to sea on his surfboard. In Leeds a local resident comes to the aid of a young woman who has fallen into a river.

Featuring the story of a British professional cyclist involved in a horrific collision with a race support vehicle. A dashboard camera captures a car crash. Two men lighting a bonfire are in for a shock.

The story of a driver whose dash cam records his heart attack and dramatic rescue by passing motorists. Rescuers rush to the aid of a group of people swept out to sea only to be swept away themselves.

The story of a para-glider left hanging by a thread in a forest after his canopy collapses. A dash cam captures the moment 3 cars collide. A bullock on the pitch has a cricket team hit for six.

Nick tells the story of a lorry driver trapped in his cab for hours after swerving to avoid a deer at night. Also, a family searching for their lost dog seek help when dad gets stuck in the mud as the tide turns.

Nick tells the story of two young students mowed down in a hit-and-run, captured on CCTV. And a lone climber on Snowdon takes a tumble, but a rescue helicopter can't reach him.

Nick tells the story of a young boy who vanishes over the edge of a cliff while out walking with his family. A lone sailor drifting in the Atlantic is rescued by a very famous cruise ship.

Nick Knowles describes the rescue of a hiker who fell 200 feet down a disused mine shaft in Cornwall. Children run for cover when a firework display goes wrong.

The story of two friends who plunged down a cliff face in Cornwall on a late-night walk. A cyclist can't stop when a van brakes and two women are trapped in a historic house engulfed by flames.