S4, E11: Ten celebrities from the world of sport, music and television take on one of television's largest and most extreme obstacle courses. They journey across the globe to the purpose-built Total Wipeout course in Argentina to put their strength and bravery to the test in the hope of winning £10,000 for charity. Contestants include ex-footballer John Fashanu, `Big Brother' winner Chantelle Houghton and party boy Calum Best.