Biologist and "extreme angler" Jeremy Wade returns for another mesmerizing season of the hit Animal Planet series that finds him searching the world’s rivers and lakes for the biggest, most unusual and deadliest freshwater creatures. Join the adventure as Jeremy travels to Africa's Congo River to hunt for a Goliath Tigerfish, the world's most aggressive and deadly fish, and Thailand's Mekong River, where he catches a 700-pound venomous stingray.