Dermot O’Leary uncovers the story of the RNLI’s heroic efforts in the Second World War as its crews were called to serve in the most perilous of conditions, saving 6,376 lives. Show more

In Dungeness, the crew are called out to reports of a small boat in the middle of the shipping lanes, and they discover that the casualty is the subject of a major manhunt. Show more

In Porthcawl, a fisherman has been dragged lifeless out of the sea by bystanders. The lifeboat crew race to the beach and join the desperate attempts to resuscitate him. Show more

In Castletownbere, crew member Donagh faces a baptism of fire on his first shout as the crew carry out a dramatic rescue of a fisherman who has suffered a suspected stroke. Show more

In Queensferry, on the east coast of Scotland, an American visitor is caught out by the tide and is barely conscious when the RNLI crew drag him out of the water. Show more

In Humber, the crew must work closely together to pull off the dangerous medivac of a fisherman with a spinal injury. Show more

In Walmer, the crew respond to reports of a major incident involving a small boat in the Channel. On arrival, they are faced with mass casualties in the freezing water. Show more

In Mudeford, on the Dorset coast, a search for a missing kayaker quickly escalates when it emerges that there are six more kayaks unaccounted for. Show more

On the north Somerset coast, the Minehead crew come close to disaster in a challenging rescue of two walkers cut off by the tide. Show more

In Porthcawl, on the south west coast of Wales, the crew receive a call about a swimmer who’s been swept out to sea in a rip current as his wife and son watch on helplessly. Show more