Ever heard that you should open the windows before a tornado? Or that a highway overpass is a safe tornado shelter? Whether handed down as folklore or spread by under-informed reports, misinformation about tornadoes has endured for generations. ?The Truth About Tornadoes? follows ?Hacking the Planet? host John Rennie as he takes to the road, meeting scientists and survivors who will offer demonstrations and eyewitness testimony, to help separate fact from fiction. Knowing the truth just might save your life.