Porcupine City is a peaceful little town in Michigan's Upper Peninsula. The residents enjoy a quiet life far removed from the comings and goings of larger cities. The kind of town where everyone knows everyone else and good-natured gossip is a prime source of entertainment. It's certainly the last place anyone would think of using as the backdrop for a high-tech, high-thrill treasure hunt. Until the first gruesome clue is found: a headless corpse...