Chinese Invasion Alarm 2005
7.3 107 The MythBusters are actually taking a pot shot at an ancient Chinese text that alludes to a subterranean sonar system that could apparently detect and intercept an invasion from below. Also, if food's on the floor less than five seconds is it safe to eat?
Runtime: 50
Starts: Jamie Hyneman, Adam Savage, Tory Belleci, Grant Imahara, Kari Byron, Lulu the Dog, Frank Jacobi, Robert Lee