close as you can to that event. and enjoy it, photograph it, video it, but keep your distance and know that if you make one mistake it could kill you. don't run off, everybody stay really close. >> reporter: hill has been chasing storms for a quarter century and was introduced to nature's fury at the tender age of 9. in 1966, a killer tornado decimated his hometown of topeka, kansas, including his family's house. >> some people it probably would have scared away. it's just kind of really piqued my interest. >> reporter: hill invited us along on his final tour of the year. a ten-day, multi-state adventure into nature's underbelly. >> the most amazing storms i'd ever seen in my entire life. >> reporter: we were joined by a motley crew of weather junkies, teachers, i.t. guys, businessmen, and photographers. three folks came all the way from europe, including irishman sean branagh. >> at home, unfortunately, we don't get the opportunity very often, at least, to see