Hook, Lion and Sinker.Louie the Mountain Lion is fishing while sitting in a tree, but has not had any success so far. His son comes out of their nearby den and playfully tricks his father into thinking he has caught a fish by pouncing onto the bait. When Louie reels his son in and realizes that this was a joke, he gives his son a mild pummeling and returns to his fishing spot. His son comes back out and sees Donald Duck returning to his house with a catch of fish. As Donald walks up the dock, he accidentally drops one of his fish, and Louie's son fetches it and brings it back to his dad. Louie, meanwhile, is finally able to catch a fish of his own, but upon seeing the much larger fish his son has brought, he and his son decide to go to Donald's house to get more...