May 22nd, 2011. A powerful tornado cut a mile-wide swath through Joplin, Missouri. It was the costliest tornado disaster in history, with insured losses close to two billion dollars. It was also one of the deadliest, with 161 lives lost… and one thousand injured. The scale of the Joplin disaster drew teams of scientists hoping to find out what made this storm so destructive. And what can be done to protect communities and people in the future. What did they learn by peering inside the violent realm of a Super Tornado?