The remaining teams are forced to take on a driving test on the chaotic streets of of Jaipur, India. A run-in with workmates Paul and Steve sees engaged couple Kym and Donna left reeling. An old abyrinthine step-well could prove to be the undoing of one of the teams.

The remaining teams heads to Istanbul and some teams turn on one another while others turn on workmates Paul and Steve. A simple market challenge manages to test the patience of all of the teams. An ancient treasure could be the undoing of one pair of race favourites.