At the end of Knockout Week, the competition has been whittled down to nine extremely talented amateur cooks - all of whom are desperate to reach the MasterChef semi-finals. At MasterChef HQ, they have only one challenge: to cook one superb show-stopper dish to completely wow the judges and secure their semi-final place. The nine have one-and-a-half hours to create their masterpiece. Failure now is not an option. Only the eight best amateurs will become semi-finalists, inching closer to being crowned MasterChef Champion 2015.