In one of the most remote places on earth, a bloodthirsty serial killer has claimed over 300 victims, and is still at large to this day. An American news crew is determined to capture this terrifying murderer alive. The danger begins as producer Tim Manfrey, cameraman Steven Johnson and their rag-tag team set out on a journey up-river in search of their subject. But the deeper they probe into the mystery of this elusive assassin, the deadlier their trip becomes.