The teams face a race for the Cambodian border, despite two of the cars having been put out of action during the first leg of the journey. Noel and Liz and Andi and Miquita must drive through the night on treacherous roads if they are to reach the checkpoint before time runs out. Once over the border, the rally heads for Angkor Wat, the mysterious centrepiece of the ancient Khmer empire, which some believe could be evidence of an other-worldly civilisation. Finally, all four teams are reunited as they make their way to Phnom Penh.