The Salmon of Knowledge

S1, E2: Piggley has a big test coming up in school and hates the thought of giving up an entire weekend to study. He decides instead to catch the legendary 'Salmon of Knowledge,' an all-knowing fish that can help him ace the exam. While Piggley puts his faith in a questionably magical fish, Ferny and Dannan study. Ferny and Dannan are the ones who ace the test - and Piggley learns an important lesson.