We investigate how a free climber has no fear of the unknown; explore what happens when a wolf born and raised in captivity embraces its wild side; See an Extreme Skier's worst nightmare unfold; discover how a skydiver can survive a mid-air medical emergency; examine how a street luger racing at over 100 kilometres an hour avoids a catastrophic disaster and witness a bloke taking body suspension to a whole new level. Plus, there are stacks of clips from around the world illustrating just how fragile life is.