Junior finds a treasure map and recruits Casey, Daffney and Tooter to help him find it. They meet a salmon named Wilbur who is ridiculed for being too puny to swim upstream with the other salmon. The only obstacle they face is a big bear who wants to eat them. The Snorks save him and take Wilbur to the top of the river with the other salmon. The big bear catches them, but Wilbur and the Snorks get him back big time. Wilbur repays them by helping them find the golden castle. Onlt it's a golden castle hamburger joint!