Jack Osbourne heads around the world for the next three months testing his adrenaline-fuelled resolve. He challenges himself with the world's biggest bungee jump and the Marathon des sables, a 150-mile ultra-marathon through the Sahara Desert.
Osbourne takes on a gruelling jungle expedition in Central America with Trekforce.
The adventure continues in New Zealand where Jack tries some white-water kayaking before heading to Japan for a series of gruelling trials.
India challenges Jack, where he tries the ancient and hard-core combat sport of Kushti Wrestling. After that there is one more ordeal he must pass before heading home..