In this episode Greg discovers whether there's any truth to the urban legend that you could survive in a falling lift if you jump as it hits the ground. He is prepared to sacrifice his friends in an eye-watering expose of what makes chillies hot and, with the help of a human substitute, he finds out what happens to our bodies when we die. Other secrets shared see Greg fire-walking and trying to survive an asteroid attack, while 70s throwback Professor Logic discovers the shortest route around the world.
