The contestants received letters from home, which spurred them on in training. Shannan inspired Hamish to push through some barriers on the spin bike, who impressed his trainer by managing to keep pace with Luke. The teams arrived back at their rooms to be greeted with sweet treats aplenty, letters explaining that a 12-Hour Temptation had begun, with team Immunity up for grabs. In a show first, the trainers watched Temptation live from The Bunker. The Blacks and Reds held strong and refused to play. The Blues, fearing they would fall beneath the Yellow Line, opted to participate, while the Whites conducted a secret ballot to gauge opinion on whether to take Temptation or not.