Jamie and Freddie are joined by Rugby Union star Joe Marler, presenter Kelly Somers, comedian Joel Dommett, professional gadabouts David Walliams and Jonathan Ross, and - to make sure he's doing his job properly - Romesh's mum Shanthi Ranganathan. This week the teams take part in a pillow fight, have a go on a pop cycle, and play a game of Danger Dodgeball.