In the fourth episode of the series, 5 celebrities are left and the race to get through to the final is drawing closer. In this week's episode, the remaining celebrities are faced with driving high-speed rally cross cars in a bid to secure their place in the final. However, the two with the slowest times will once again go head to head in the Night Race to find out who goes home, and who stays for the final. The Night Race takes place on a specially designed course that will push the drivers to their limits. Each week, the bottom two contestants will be put behind the wheel of a BMW M3, which can do 0-60 in around four seconds. Racing one after the other, they must each attempt to complete the course in the fastest possible time. The driver with the quickest time survives and the slowest goes home.