CURIOSITY: MEGASTORM - Hurricane Sandy is one of the most treacherous weather events to hit the United States. But how did it become so powerful and what lessons have we learned? Using footage captured by survivors own cameras and smartphones, we go on the ground to reveal stories of those who experienced the event first-hand and uncover how distinct phenomena combined to create the perfect storm and how we can prepare for the next one. ENGINEERING HURRICANES - Earthquakes, hurricanes, and volcanoes are some of the most powerful phenomena known to man. Find out how nature has expertly conceived and built killer storms, lava-spewing giants, and destructive quakes - and how we can learn from the designs to help save lives when we find ourselves in the path of one of these Earth-changing events. TORNADO RAMPAGE - Residents of tornado alley know all too well that twister season can be a time of terror. In 2008, tornadoes hit earlier and travelled across a wider territory than in any tornado season in years. The first deadly tornado touches down on 7 January. The devil's delivery is months before expected. Then, on Super Tuesday, 5 February, eighty tornados erupt across nine states and one comes crashing down on Union University in Jackson, Tennessee. Go inside an EF 5, for an incredibly rare and terrifying look at the most powerful tornado on earth. The twister hits at 300 miles an hour and literally rips a house to pieces. These are the most terrifying twisters ever caught on tape. Unforgiving funnels of fury that ripped the heart out of America's heartland. In Tornado Rampage, witness shocking footage of record-breaking tornadoes as we reveal the science and extraordinary story behind each raging column of disaster. SCIENCE OF STORM CHASING - In the Science of Storm Chasing we meet Dr. Josh Wurman, a meteorologist who has dedicated much of his life to studying extreme weather. This 2-part series follows Wurman and his elite crew of storm chasers are on a unique and dangerous mission - to gather scientific data from inside the heart of mother nature's deadliest concoction and analyse their findings. RAGING NATURE: TORNADOES - This episode analyses the most destructive tornadoes ever caught on tape. From the 1999 Oklahoma City Tornado to a 2005 twister that decimated the town of Woodward, Iowa, hear eyewitness accounts from those who survived the storms and watch the footage they risked their lives to capture. And using forensic animation, Raging Nature: Tornadoes examines each clip, revealing details even the survivors did not see. BLOWN AWAY: GREENSBURG, KANSAS - Host Josh Bernstein visits Greensburg, Kansas, site of the 2007 devastating tornado, one of the most destructive in U.S. history. His mission: to see how this small town is turning tragedy into opportunity by using green technology to rebuild. Beginning with the science of the tornado, this program also explores what the townspeople experienced and why they have opted to try rebuilding green. GREENSBURG - On May 4, 2007, a deadly tornado struck Greensburg, Kansas, ripping the town to shreds. Eleven lives were tragically lost, and a community embodying the spirit of small-town America was left to pick up the pieces. From the rubble, however, came a resilient and courageous call from the people of Greensburg to rebuild their community while sending a bold message: to rebuild Greensburg as a model green community. In this extraordinary series co-produced by acclaimed actor and environmental activist Leonardo DiCaprio and award-winning producer Craig Piligian, see how the lives and livelihood of Greensburg's citizens are changed by this massive reconstruction effort. Greensburg's story is both poignant and universal and it shows that when individuals, companies and communities respect and harness nature, the results are a dramatic improvement in our social, economic and environmental living conditions.