Dr Knowles and Professor McCork ask the question 'What Is the Coldest Place on Earth?', and we travel to some of the most bone-chillingly icy places on the planet to find out. We also learn about the best way to dress to stay superwarm! Meanwhile backstage, the crew is absolutely freezing because Ms Hucklebuck refuses to turn on the heating. Doctor Knowles decides to confront the mysterious new boss in her office.