Early one morning in 1995, a rancher in Humacao, Puerto Rico, found three of his goats dead. The blood seemed to have been drained from their bodies. As dozens more farm animals were found dead across the island, the fear of the so-called Chupacabra -- the "goat sucker" -- grew. But was a mysterious cryptid really responsible for all of these deaths? And if so, where would it go next?