Two very different sisters. Once inseparable, they have long been estranged after an unimaginable betrayal. <br/>Organised and uptight Frances married the only man she'd ever slept with. But no - one told her that seven years later she'd be having sexual fantasies about everyone from the pizza delivery guy to Denis Thatcher. Scatterbrained animal - lover Joni never knew she was so attached to her kneecaps until she thought she might have to say goodbye to them forever. <br/>After their beloved grandmother - a game - show addict - dies, they discover that they have each been left one million pounds in her will. The kicker is that they can only inherit if they participate as a team in a gruelling reality TV program, Endurance Island.<br/>They can survive the jungle. <br/>They can survive the humiliating challenges. <br/>But can they survive each other?<br/>