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It's Knockout Week, and last night saw one more contestant leave the competition. At the end of this week, only the best six can become semi-finalists.

In this episode the second group of five amateur cooks get their first taste of professional cooking. They head to a restaurant in London overseen by classically trained and Michelin-awarded chef Bruno Loubet. The five amateurs will be responsible for serving up every dish on the menu for a busy lunch service. As the competition hots up, who will sink and who will swim?

Then, back at MasterChef HQ, the cooks face an invention test to show John and Gregg what they have learned. In a last-chance bid to stay in the competition, each contestant must show they can invent a dish from scratch that looks and tastes exceptional. They can choose from a plentiful array of seasonal produce that ranges from the everyday to top-end ingredients. In an unexpected twist, they present their food not only to John and Gregg, but also to renowned two-Michelin-starred chef Marcus Wareing, who helps John and Gregg evaluate the five amateurs. After this, one of them will be going home.

Who will crumble under the pressure and who will make it through to Friday's challenge - the gateway to this year's semi-finals?