World's First BMX Quadruple Backflip

You remember Nitro Circus, right? The now distant MTV reality show that featured extreme athlete Travis Pastrana, his friends, and all their death wishes—or as they prefer to call it "doing stunts." Though the show is no more, it's spawned its own tour and a 3D movie. The gang's newest big challenge? Landing a quadruple backflip on a BMX bike.