A bodyboarder, dragged out to sea in extremely rough waters, clings on to an outcrop of rocks while the tide comes in fast. Tasking a lifeboat is far too great of a risk in treacherous conditions, so the helicopter crew is the only hope left for the stricken casualty - and there's no time to waste. And when a woman gets stuck in mud up to her thighs, Cleethorpes Coastguard Rescue Team get on the scene in minutes as the pressure of mud on the body can cause blood circulation to be cut off. And Coastguard Helicopter Rescue 936 is tasked to the Lake District after reports of a walker who has taken a fall while climbing a peak.

After a fishing trawler in the North Sea sends out a distorted mayday, a helicopter crew must race to locate and save crew members afloat in dangerous, freezing waters.

A helicopter is dispatched to save a skipper's life when strong winds and high tides threaten to push a yacht in to a harbour wall. And a surveillance team investigate a worrying sign of pollution.

A scuba diver suffers from decompression sickness, which can be fatal unless treated quickly. It's a race against time to transfer the person to the mainland, 70 miles from the casualty's current location.

The Coastguard responds when a child is stuck halfway down a cliff with nowhere to go. As the light fades fast and temperatures drop, the CRT must attempt a daring rescue to save the youngster from harm.

In Liverpool a team investigate the death of a crewman attempting to board a tugboat, and there's a mayday call in the North Sea.

After a tragic boat accident at Poole Harbour, Dorset, the lead investigator must assess CCTV, the vessel, expert witness statements and police reconstruction to bring justice for the casualty's family.

Helicopter crews attend a sick child on Mount Snowdon, a French yacht in serious trouble in the English Channel, and a walker and his dog on the mountains of Scotland.

In Caernarfon, a helicopter is tasked with helping a kite surfer in trouble at sea. In Fareham, a fishing vessel triggers a distress signal, raising concern for the crew's welfare.

Off the coast of Devon, ferocious waves sweep a yacht onto rocks, and the Coastguard Rescue Helicopter from Caernarfon receives a call about an injured person trapped in a ravine.