Criss Angel attempts to cause a moving object to vanish in front of a real live audience on top of a parking garage in Las Vegas. He speeds along the parking lot in a go-kart towards men with fire extinguishers. They discharge the CO2 creating a cloud of smoke into which Criss vanishes. Pretty impressive, however due to a mistake in a camera angle, and the wonderful technology of cable TV recording devices, slow motion reveals his secret.
Check out the full explanation here.