Opening the Tweed follows the start of the 2026 salmon fishing season on the legendary River Tweed, capturing the people, traditions and year-round work behind the UK’s most celebrated salmon river. Beginning at the Tweed Fly Fair, we meet fly tyers from around the world, collectors of vintage tackle and the ghillies whose deep knowledge shapes every cast. As dawn breaks over famous beats like Bemersyde and Hendersyde, fishermen gather for that first hopeful cast of the year. Through conversations with conservationists, managers, educators and anglers — including the man who lands the first fish of the season — the documentary reveals everything that goes into keeping the Tweed strong. From teaching children about fly fishing and river ecology to the vital role of catch-and-release, Opening the Tweed is a portrait of a community bound by water, tradition and the enduring pull of a salmon running home.