Dag gets a cold so Tree Flower nursing him and pretends to Muscular Beaver's new sidekick Norb Gets jealousy mistaken at them for some reason. / Laverta Lutz teaches Dag how to win arguments, telling him that "the argument's over when the fat beaver sings." As a result, Dag ends every argument that Norb puts him in by starting musical numbers--until Norb tells him that he actually loves one of the songs and tries to get him to sing it again.