Overview: Heat five continues as the four contenders return to the MasterChef kitchen to face their second challenge. They have one hour and 30 minutes to prepare their Signature Dishes: a main and a dessert which demonstrate skill, creativity and individuality. The chefs need to pull out all the stops to impress the judges and cement their place in the competition, as only two can go through to this week's quarter-finals. The other two will be going home.