Paul finds himself in Northern Argentina in this episode, fly fishing the mighty River Parana and its tributaries for hard fighting Golden Dorado. From his lodge, he heads 2km downstream with local guide, David, to a shallow part of the river with patches of reeds that create multiple small runs and pools. Paul casts his streamer pattern and lets it swing around the reeds and soon hooks up with small but welcome Dorado. Strong and acrobatic, these pretty fish provide Paul with plenty of sport on his streamer, before he tries a surface pattern made with deer hair with equal success. The move again, and change fly again and Paul hooks a big Golden Dorado which jumps everywhere giving him a terrific battle before the 12lb fish is finally landed. In part 2, Paul jumps into another boat with fellow Scot, Doug Lingburn who is planning to try and catch a Surubi Catfish which live in these waters and can grow to substantial sizes. Doug is using a bait rod with a wire trace and a piece of fish as bait whilst Paul tries his luck with a spinning rod. All of a sudden, Doug's line screams off and he has a great fight with a big Surubi which weighed in at exactly 50lbs. Later in the day returns to the lower river to battle with the Golden Dorado again this time, using a fly called the Noodlebug.