Explore collisions that shake our world from the astronomic to the subatomic. Discover breakthroughs that could make the deadly sport of professional auto racing safer and visit a motorcycle crash test facility and examine two-wheeled accidents in detail. Meet a skydiver who survived a crash to earth from 11,000 feet. An asteroid crashing to earth could destroy our planet–watch as NASA's Near Earth Asteroid Tracking team hunt down dangerous asteroids. Finally learn about scientist's who are creating crashes with colliding subatomic particles in the world's largest machine. Will they unlock the secrets of the universe–or accidentally open a black hole?