Paul and Bob venture from London to the Scottish Highlands, taking a sleeper train overnight to their destination. They wake in the stunning vista of north west Scotland, where the pine forests and snow-topped mountains almost take their breath away. They are on a quest to fish for ferox trout, which is a tall order for any angler. But they are in the right place, the River Garry, with a local guide to help them target their quarry. Setting off in a boat, the pair fish long and hard, while also taking time to look for the Loch Ness monster.