The River Challenge: Jack loves all sorts of outdoor activities, but he just can't stand getting wet. Anything that means he might have to swim and Jack is the first to duck out of it. But when he falls into a small stream at Camp, he's not just embarrassed, he's been transported to a raging river where dangers lurk around every bend. Luckily, the inspirational adventurer Bear Grylls is there to guide him through the treacherous waters and give him back some of his lost confidence. The Earthquake Challenge: Fatima's loving Camp during the daytime, but pitch-black nights in the tent are scary. Then she's transported to a deserted city by the magical compass, where the aftershocks of a huge earthquake are still being felt and all the lights are out. But soon Fatima meets up with survival expert Bear Grylls, who helps her get safely out of the danger zone. Together they discover that the city's not quite as deserted as it seemed, and Fatima learns a few things about staying calm no matter what happens.