The five remaining cooks now have one challenge standing between them and a quarter-final place. They have to cook two courses that will excite not just John and Gregg, but also some very special guests. Some of MasterChef's most inspiring winners and finalists return to judge the food of this year's new contenders to the throne. In this heat, the contestants must attempt to impress 2010 MasterChef finalists Alex Rushmer and Tim Kinnaird as well as champion Dhruv Baker.