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World's Toughest Fixes is an American reality series that premiered on the National Geographic Channel on September 28, 2008. It features Sean Riley participating in various "tough fixes"; repairs and renovations done on equipment that is very large or dangerous. Riley is an expert in heavy duty rigging and load bearing, and works with other specialized engineers to tackle these uniquely difficult jobs. A first season aired 8 episodes beginning on September 26, 2008. A second season aired 8 episodes beginning on June 4, 2009. A third season of 7 episodes aired beginning May 6, 2010. A fourth season aired beginning September 30, 2010. The first season DVD contains 10 episodes, 2 of which aired in season 2. The second season DVD contains 11 episodes, 5 of which aired in season 3.