It's semi-finals week on MasterChef: The Professionals, and the competition is heating up. MasterChef presenter Gregg Wallace teams up with chef Monica Galetti and two Michelin-starred Marcus Wareing to continue their search for this year's champion. In this episode, the remaining eight chefs face a double-headed beast of a challenge in the MasterChef kitchen. At stake is the chance to move forward in the competition and the opportunity to cook in some of the most influential and unique kitchens in the UK. The first challenge the eight chefs face is cooking against each other to create a dish dedicated to someone who has inspired them in life. Whether that's a professional from their career, a family member or a loved one, the challenge is to create a dish that in turn inspires the judges to send them straight through to the next round. In just one hour and 45 minutes, they have to deliver a perfect plate of food that showcases their personality and style, and sets them apart from the other chefs. After tasting their dishes, the judges will decide which professionals have proved themselves strong enough to go directly through to the next round. The remaining chefs must return to fight again in the MasterChef kitchen to secure one of the remaining four places in the next round. They face an invention test, where they are tasked with creating their own unique dish which celebrates the fresh and light ingredients on offer - and this time, there's no meat or fish for them to choose from. With this plate of food, the judges' expectations are high, so it's imperative that the chefs' ingenuity and skill shine through or they will forfeit their place in the next semi-final challenge. After this hard-fought battle, two chefs are asked to leave the competition. The six who remain continue on their path in pursuit of the MasterChef: The Professionals title 2017.