Filmed in Mongolia - this show focuses on Zeb's research on the ecology and conservation status of the world's largest trout species, the taimen, a huge predator that can grow to 6 feet and 200 pounds. Highlights of the show include details about a a partnership between scientists, anglers, and local monks designed to help protect the taimen, a discussion of threats including poaching and gold mining, and beautiful scenes of Mongolia and fly fishing. Themes: Lake Baikal watershed, fish biology, endangered species issues, partnerships for conservation, catch and release angling, ecology of long-lived species, threats to freshwater biodiversity.