Tales of things going very wrong

Ultrarunner Dylan Bowman recounts a mid-race encounter with “the world’s most vicious yellow lab".

Deep in the Yukon, a crew of mountain bikers are confronted by a family of grizzly bears.

Wingsuit BASE jumper Jeff Provenzano recalls the time he ended up landing 60ft off the ground in a tree.

Comedian Zach Anner and his friends make an impossible trek to a cascading waterfall in West Virginia.

Follow kayaker Nouria Newman's vlog as she embarks on a treacherous solo expedition in the Himalayas.

Drop down the 50ft waterfall on a kayak in Maui with Poopies in this GoPro footage.

The Rio Cajones lives up to its name as the guys ride rapids and rappel rock walls in the canyon for two days.

Team SoloMid’s CS:GO and Vainglory gain valuable insights about their teamwork while at a ropes course.

Kayaker buds Joel, Rafa, Dane, Kieran, Seth and Juan embrace the unkown as they finally arrive in Michoacán.

Things get crazy after the crew buy a kayak from craigslist to ride down a 50ft waterfall.

Crossing the Torres Strait is one of the riskiest journies on the ocean. Making a film about it, even more so.

Climber Chris Sharma starts a quest to make first ascents of the greatest unclimbed walls on Earth.

Pro surfer Mick Fanning and photographer Trevor Moran arrive in Norway to surf under the Aurora Borealis.

After a cliff fall shattered his legs, Kai Jones faces a harrowing rescue, surgery and fight for survival.