Kicking off a new season of Pure Fly New Zealand, Mike Kirkpatrick and Andrew Harding fly deep into the backcountry to the Karamea River to sight fish for massive Brown Trout. Accessible only by helicopter, the wilderness of the Kahurangi national park is just the place for wild fish to grown to enormous sizes. Arriving to a November hatch of large mayfly, Mike and Andrew have a chance at some exhilarating dry fly fishing, but dark waters are hiding the fish from sight. As they push further into the wilderness, the blue waters run clear and both men square up with some very big trout.