Donal MacIntyre finds out what it's like to stand up to winds of 136mph and sees what a 4,000,000mph wind looks like. He meets those who have experienced the fury of tornados, hurricanes and jet streams.
Donal MacIntyre learns about floods and the world's wettest places.
From the North Pole, Donal MacIntyre takes a journey south with winter as it brings death and destruction into our world.
Donal MacIntyre experiences hot and humid conditions in Belize and the exhausting dry heat of the desert during the Marathon des Sables.