It is knockout week on MasterChef: The Professionals. MasterChef presenter Gregg Wallace teams up with two of Britain's leading chefs - Michelin-starred Marcus Wareing and Monica Galetti. The kitchen is heating up as the judges' hunt for the country's next culinary superstar. After four weeks of intense competition, the 12 most talented chefs remain from the initial 48. Tonight, for the first time they all come together in the MasterChef kitchen, where their fate rests in an almighty cook-off.

The first challenge for the 12 chefs is to cook against each other in the most intense invention test of the competition. They need to impress the three judges with one spectacular plate of food created from a heaving table of fresh sweet and savoury ingredients. But Monica and Marcus have raised the bar a little higher and challenge the chefs to the max by removing all the modern kitchen gadgets from the MasterChef kitchen. In the absence of a sous-vide or water bath, the emphasis is on classic cooking skills - plain and simple. With two hours and 15 minutes to create an innovative plate of exquisite food, they must seize this opportunity to make an impact on the judges. Only eight chefs will be guaranteed to move onto the next round.

The weakest four need to dust themselves off and cook-off again against each other. In the cook-off round, the four remaining chefs have their final chance to showcase their talents to Marcus, Monica and Gregg and save themselves from being sent home. With one hour to create one perfect dish, it is time for the chefs to dig deep and muster their culinary magic and convince the judges they deserve to continue in the competition. For two chefs, it is the end of the road and they are sent home. The best two chefs from this round join the other eight and continue their quest to raise the MasterChef: The Professionals 2018 trophy.

Knockout week continues on MasterChef: The Professionals. Chef Monica Galetti and Michelin-starred chef Marcus Wareing scrutinise the chefs every move in their bid to uncover the professional chef to crown culinary superstar of 2018.

Tonight, the second group of five chefs face two intense challenges set by Monica and Marcus. The chefs must cook together for the first time as a team to create an exceptional three-course, fine-dining menu at one of London's most prestigious addresses, The Royal College of Physicians. Celebrating their 500th anniversary, the meal must excel. The chefs have two and a half hours to collaborate as a team to design and cook their special menu, which will be served to the president Professor Dame Jane Dacre and her five VIP guests. The chefs' every move will be watched over by judges Monica and Marcus. Will their creative vision and talent shine through? Or will team playing prove to be their weakness?

With the team challenge behind them, the five chefs return to the MasterChef kitchen where they face the judges as individuals once again. Face to face again the chefs will battle it out for a place in the semi-finals by proving to judges Monica, Marcus and Gregg that they really are a cut above the others. With 90 minutes they must create their own unique dish to prove their talent and dedication to deliver at the highest level, and to take them through to the semi-finals. After tasting the dishes, Marcus, Monica and Gregg decide whose time in the MasterChef kitchen is up and which four chefs will move forward in the competition - one giant step close to being crowned MasterChef: The Professionals Champion 2018.