In their 14 years, the MythBusters have used more than 3,500 human guinea pigs, and in this special, they pay homage to each! First, Jamie and Adam summon up an army of 200 zombies to determine the ultimate weapon when the apocalypse comes. Then, using 120 shopping volunteers, the MythBusters find out the best way to wait in line at the store: Is it the "pick a lane" method or the more modern serpentine?