The first four contenders face their opening skills test; two must get all the details just right as they prepare bangers and mash in only 20 minutes, while the others cook monkfish.
Heat one continues as the four contenders return to the kitchen for their second challenge, with another chance to stand out and rectify any mistakes made in the Skills Test; each chef has one hour and 30 minutes to cook two signature dishes.
In the second heat, four more professional chefs from around the country face two tense challenges, after which two will progress to the week's quarter-final and two will be sent home.
The first quarter-final sees the strongest four chefs from the first two heats return to face two more demanding challenges.
Heat three sees four professional chefs challenged to prepare agnolotti with a pea and mint pesto and pan-fried calves liver with walnut beurre noisette.
Heat three continues as the contenders cook their signature dishes; the two most impressive chefs will go through to this week's quarter-final.
Gregg Wallace
Host
Marcus Wareing
Sean Pertwee
Narrator
Monica Galetti
Anna Haugh