The four remaining celebrities in the final heat face three more culinary challenges as they battle for a place in the semi-finals. The first challenge is the new Pairs Challenge, where the four celebrities are split into two teams of two. Each team is tasked with cooking the same dish, but in-between each pair there is a wall. The only way for the celebrities to successfully produce identical plates is by communicating with their teammate through the wall. The celebrities are then sent out on their first mass-catering challenge. Remaining in their teams they have to make lunch for over 100 members of staff and students at the Royal Veterinary College in Hertfordshire. It is then back to the MasterChef kitchen, where the four celebrities must cook a faultless two-course meal that is not only judged by John and Gregg but also by Celebrity MasterChef champion Alexis Conran, semi-finalist Reverand Richard Coles and finalist Andi Peters.