In 2006, Channel 4 followed eight seriously obese people as they set off from the south coast of England to walk 500 miles to Edinburgh in a bid to get fit. Now 12 overweight individuals are walking from the starting line of the Boston Marathon, over 550 miles to Washington DC, for a prize of up to $1.2 million. The more people who finish the course, the more money each person wins. During each leg of the journey there are luxury reward challenges where the participants can win incentives; and, at each elimination, participants can expel a group member. Continues throughout the week.

Monday 8 December 2008
8:55am, Channel 4