London's De Beers Diamond Dudes

On November 6, 2000, London's Millennium Dome opens for the day. A meager crowd walks through the gates alongside an even smaller security staff. As the visitors ponder the exhibitions, they hear a crash outside, and a loud rumbling that gets closer…and closer. Then, an excavator crashes through the side wall, heading straight towards the De Beers diamond exhibit. Tourists and employees dive out of the way as the excavator screeches to a halt. Its occupants rush out, tossing smoke bombs into the crowd. They run into the vault armed only with a nail gun and a sledgehammer. The target? A one of a kind $270 million diamond.