It's the third and final week of heats as five new celebrities test their culinary skills, including preparing grilled herb-crusted mackerel fillet with a tomato and caper salsa and a green salad.

The five celebrities face two more culinary challenges as they battle for a place in the quarter-final.

It's the last quarter-final of the series, and this heat's remaining four celebrities return to do battle once more. They all want a place in the semi-finals, but only the best three will get there.