In this time zone special, Dr Knowles is out in Mongolia and Professor McCork joins from Rio de Janeiro to ask the BIG question 'Why does the Earth spin on its axis?' Back in Brain Freeze HQ, Colin attempts to ready Ms Hucklebuck to present the show for the very first time but will she be able to rise to the challenge?

Professor McCork and Ms Hucklebuck are coming live from the sky as they ask 'How does a parachute work?' Back in the studio, Colin and Doctor Knowles have the task of getting them down safely but these things are never straightforward when McCork is involved!

Professor McCork and Doctor Knowles ask 'How long would it take to walk the Earth? Meanwhile, the normally fearful Colin embarks on a solo Wilderness Survival Challenge. Things could get very creepy.