Episode 1
Follows Jack through daily five-mile runs, six-hour training sessions, fasting and enemas during an intense stay at a sweltering Muay Thai boxing camp near Bangkok.
Episode 2
Kelly Osbourne visits her brother in Spain to watch him risk his life running with the bulls in Pamplona. Jack also confronts his tear-inducing phobia of heights during a training session in the French Alps.
Episode 3
Tensions mount as Ozzy and Sharon watch their son quiver his way up the jagged rockface of California's El Capitan mountain.
