Marcus Wareing, Monica Galetti and Gregg Wallace team up to search for the country's next culinary superstar. It is the quarter-final and the six best chefs from the week's heats return to the MasterChef kitchen to continue in the pursuit of the winner's crown. Monica and Marcus ask the chefs to reinvent and reimagine a great family favourite - fish and chips. They will need to elevate the dish to a new standard without losing its heart and soul. Next, the chefs cook for some of country's most discerning restaurant critics. This week's food critics are Jay Rayner and William Sitwell, joined by Amol Rajan, editor at large of The Independent, who is not bashful about bringing his opinion to bear.