Chris Sharma has been at the top of the sport climbing game for 15 years, but 19-year-old prodigy Adam Ondra is hot on his heels. The legend and the young contender team up in Catalunya, Spain, trying to establish the world's hardest route.

For a decade, Hans Florine and Dean Potter have one-upped each other in a wild race for the speed record up The Nose, a 3,000ft route on El Capitan in California, USA, each taking increasingly enormous risks to reclaim the title.

Slacklining was born as a rest-day pastime for dirtbag climbers, but wild man Andy Lewis has a vision to elevate this laid-back form of balancing on a line to a full-blown art form and adventure sport.

Ueli Steck is one of the world's fastest alpinists, but his latest quest could cement his place among legends. Ueli attempts to break the speed record on the north face of The Eiger, Switzerland with only crampons and axes in a sprint to the peak.

Tom Randall and Pete Whittaker are on a mission to climb wide cracks and master this bizarre form of climbing.

Ashima Shiraishi is already one of the world's strongest female climbers. She crushes all competition and blows minds with her top-end ascents on her first outdoor climbing trip.