The MasterChef semi-finals continue. Forty amateur cooks have been whittled down and now only the most promising seven remain in the competition, all fighting for a place in Finals Week. In this programme they have to pull out all the stops as they are tasked with the daunting challenge of cooking for some of the world's most celebrated restaurateurs. Travelling to London's fashionable Chelsea, the amateur chefs are thrown into service at the culinary landmark Bluebird where they take full control of its kitchens. John Torode oversees the kitchen, as the amateurs face a high pressured lunchtime service