It's the final heat week, and the celebrities are about to have their culinary socks blown off as they undertake three tasks in the hope of winning a place in the last of this year's quarter-final.

Heat four reaches its climax, with the very last quarter-final, featuring the week's three best celebrity cooks.

It's semi-finals week, and just eight celebrities are still in the race to become this year's champion. Getting there will be tough, and two more challenges await.