The Top 16 contestants move into the MasterChef mansion on Auckland's North Shore.That night they experience a rude awakening, with a surprise appearance from Simon Gault, who outlines their challenge: an all-night bake-off at Auckland's Loaf bakery, in which two teams must each bake eight different kinds of bread and deliver them to the Hilton Hotel's Fish restaurant in the morning for tasting.Very few of the contestants have any baking experience, and as the night unfolds, so do the dramas. As the two teams grapple with unfamiliar recipes and equipment, lack of sleep takes its toll and basic mistakes begin creeping in throughout the bakery.