Brian Cox gains exclusive access to Virgin Galactic, Blue Origin and Spaceport America, to explore what is really happening in privately financed space flight right now. Show more

In Portrush, Northern Ireland, the crew race to rescue a boy who has gotten into difficulties while jumping off rocks - and one of the crew volunteers enters the water to save him. Show more

Just off the west coast of Scotland, on the rugged Isle of Mull, the Tobermory lifeboat crew have to battle huge waves to save a 40-foot fishing boat that has lost all power. Show more

The RNLI crew in Newhaven face a race against time as they respond to reports of a man who’s suffered a seizure on board a tall ship. Show more

On Ireland’s south-east coast, the three RNLI crews at Dunmore East, Kilmore Quay and Rosslare battle to save a cargo ship that has lost all power and is drifting towards rocks. Show more

The volunteers of the RNLI race to save a surfer at the mercy of Storm Brendan and a paddleboarder who’s being swept out to sea - and away from his young children. Show more

The volunteers of the RNLI battle to save a mother and her son who are caught in a rip current, plus a man who has fallen over 100 feet from the top of a cliff. Show more

The lifeboat volunteers pluck a fallen climber out of the sea in Wales, and in Scotland they rescue a 170-ton fishing boat that’s perilously close to the rocks in gale force winds. Show more

In London, the RNLI rush to the rescue of a man in the water in the Thames, while in Fleetwood a desperate 999 call alerts the crew to a man in danger of being swept out to sea. Show more

In St Agnes, the crew are involved in a race against time to rescue two young men. They are reported to be struggling in the water near a notorious headland known as Tubby’s Head. Show more

In Trearddur Bay, the RNLI crew battle through force-ten winds and huge waves to try to rescue a surfer - watched by their worried families back on shore. Show more