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Urban free climbers are a new breed of daredevils, young men and women who illegally climb cranes and buildings without any safety equipment, then hang from them, hundreds of metres above the ground, one slip from certain death... Free climbing originated in Eastern Europe, but has recently spread to Britain. James Kingston is a 23-year-old who lives with his mother near Southampton. In his spare time James scales the local 100m cranes and 200m radio towers. Now James embarks on a journey to the spiritual home of urban free climbing, Ukraine, where he teams up with the infamous Mustang Wanted, the craziest climber of them all. As Mustang and James explore Kiev, the pair push themselves to new extremes, climbing derelict buildings and tightrope-walking hundreds of metres above the city, before finally heading to the iconic Moscow bridge to attempt Mustang's latest death defying stunt. Don't Look Down is fascinating, revealing and nerve-wracking.

On-ice enforcers struggle to rise through the professional ranks of the world's most prestigious hockey league, only to be confronted with a new found fight for the existence of the role itself.

Luke Tyburski is no stranger to extreme endurance challenges, and the 500 Man triathlon was just that, an extreme challenge but this time he wasn't alone.

While some riders race for the podium, others come to for the challenge and to say they competed in one of the toughest races on earth. To them it is not about winning, it’s about finishing. That is the true spirit of Extreme Enduro where boys become men as soon as the flag drops.

Adrenaline can be addicting. Athletes around the world push their limits in death defying acts to get the feeling of it. Extreme sports, extreme climates.

A look back at the best moments from 2011 in the Ultimate Fighting Championship, featuring 30 matches in total. Among the fighters whose exploits captured the imagination of UFC viewers in 2011 were Junior dos Santos, Frankie Edgar, Tito Ortiz, Wanderlei Silva and Minotauro Nogueira, while, for many, the encounter between Dan Henderson and Shogun Rua stands as the most memorable fight of the decade.

With upsets, blowouts, submissions, a new weight class and one spinning-elbow knockout, UFC Best of 2014 recaps the year in 90 spellbinding minutes. Look back at defining moments from dominant titleholders including Jon Jones and Ronda Rousey, newly crowned champions including Carla Esparza and T.J. Dillashaw and white-hot stars on the rise like Conor McGregor. Plus, nearly four hours of bonus fights bring you all the action from signature performances by stars such as Johnny Hendricks, Robbie Lawler, Chris Weidman, Dan Henderson and more.

EXTREME is a visually stunning 45-minute journey into the soul of adventure featuring a cast of world champion athletes. Combining incredible extreme sport action with narration from the athletes and an eclectic, contemporary soundtrack, EXTREME explores the paradox of human nature: facing fear from the edge of life.