If you're like us, you were blown away by "Pipe Dream," the Red Bull-produced video in which Robbie Maddison surfed his two-stroke KTM on a massive wave at Teahupoo in Tahiti. It was nothing short of incredible, watching Maddison shoot across the water on his specially equipped KTM, then drop into a huge wave and actually surf it. It was jaw-droppingly good, and the video left us with more questions than answers. Why didn't his bike sink? Or did it? How did he get started out on each run? How did each run end? Answers to these, plus several other questions you may not realize you even have, are provided in this must-see behind-the-scenes look at the most talked about action-sports film of the year. Enjoy Part 1.