Four top chefs compete for the ultra-competitive London and the South East region with canapes, starters and fish dishes. All four are newcomers in the GBM kitchen, representing some of the most exciting new talents in the UK today. Presenter Andi Oliver welcomes them to the kitchen, where the theme for this year's competition is a celebration of British invention and innovation. One of the four must leave the competition at the end of the episode, as decided by this week's veteran judge.