An injured lone walker is lost for two nights during a storm on the Isle of Skye. And travels are cut short in Bolivia for a young woman when she has a terrifying encounter with a pink river dolphin.

Brave rescuers risk their lives evacuating residents from a burning high-rise. And a woman comes to the aid of her best friend when she unexpectedly goes into cardiac arrest.

A man is severely injured and trapped under a tree that's fallen during a storm. And a toddler is rushed to hospital after a deadly adder bite.

A family hike on Dartmoor sparks a helicopter rescue mission when a father of three is injured. And a huge lorry terrifies a young girl and her horse when it fails to slow down while passing them.

An adrenaline-fuelled base jump goes terrifyingly wrong when a parachute opens the wrong way, a freak lightning strike sets fire to an annexe with a young girl inside, and a terrifying road rage incident threatens the life of a cyclist and a pedestrian.

A horse ride on the beach ends in disaster, a paraglider loses control during high winds, and a farmer is airlifted to hospital after two huge hay bales fall on him.

A tree surgeon's day nearly ends in tragedy after they plummet from an oak tree. And a cave adventure risks calamity when flash flooding causes an influx of water into a network of caves.

A father battles to save his young son's life when he chokes on a hot dog. And a fun horse ride with friends takes a dramatic turn when a young girl crashes to the ground.

A solo climber risks his life when things go wrong on a remote snowy peak. And a dog walk in idyllic rural countryside threatens one woman's life when she's trampled by cows.

A tranquil paddleboarding trip in Gibraltar takes a deadly turn. And a woman risks her life to save her beloved dog from a burning building.

A passion for mountain biking turns perilous as a jump goes terribly wrong. And a lucky escape for a family when an ancient oak tree comes crashing into their home.

Horrifying dashcam footage captures the devastation caused by an out-of-control car. And a mum of three is trapped in a burning building while her sons desperately struggle to free her before it's too late.

A group of students face life-threatening conditions on a remote hike when one is injured and a weather white-out closes in. And twin sisters have man's best friend to thank after their family dogs alert them to a house fire.

Every parent's worst nightmare – a toddler stops breathing and dad has to perform CPR with help from a 999 call handler. And emergency services rush to the aid of a retired father of three who has crash-landed his light aircraft in a field.

A man narrowly escapes death after his dog alerts local walkers of his plight, 200 feet down a remote ravine. And an enthusiast's love of cars has dire consequences when he buys back a favourite old motor.

An adrenaline-fuelled jump from a bridge goes terribly wrong, sparking a multi-agency rescue to retrieve an injured woman from icy water. And two young siblings bravely call 999 after their mum has a seizure that leaves her injured and confused.

A father goes into cardiac arrest after risking his life battling a blaze that's engulfed his family home. And an experienced mountain biker misjudges his take-off in a competition, with devastating consequences.

A helicopter rescue mission for an injured climber who is stranded alone after plummeting down a rock face. And a cyclist's brush with death as a giant hay bale falls from a passing tractor.

A race against the tide as a young woman lies injured in a rock pool after plunging 40 foot down a cliff during a family holiday. And a young girl and her grandfather come close to tragedy on a bike ride that threatens to be their last.

Stadium medics battle to save the life of a football fanatic who suffers a cardiac arrest on the way to a match. And a mum who is living in fear after her picturesque family home is destroyed by a car.