Was he a mythic gunslinging outlaw or a destitute thieving loner? No one knows the true story of Sylvester, the petrified cowboy that now resides at a curiosity shop in Seattle. But one thing's for certain: He is one miraculously preserved mummy. Through hands-on experimentation and contributions from experts in embalming, ballistics, and the history of the American West, we explore the life and death of the man who became a legend. Then we investigate the cowboys, con men, and sideshows that played a crucial part in his incredible story.

In September 1991, two hikers exploring the Otztal Alps discovered a corpse buried in the ice. When rescue teams collected the evidence, it became clear that these were not the unfortunate remains of a modern climber, but of a 5,300-year-old iceman. Who was this man? What was he doing so high in the mountains? How did he die and who, or what, killed him? Follow the investigation as scientists pull clues from one of the oldest preserved corpses on the planet and reveal the secrets of his life and the enigmatic Neolithic period he came from.