Octonauts: The Town of Frownsville

Plot
The Octonauts are very happy, the carnival is in RetroOctoville and everyone is happy until the tearful Lou Gubrious uses his machine to switch everyone's happiness with his depression and misery. Dashi asks "What's goin on, Professor!" "It was the Professor he knows everything!" Buttercup asks. Blossom cries. "I Dont like it!" Causing the entire town to literally flood with the tears of the citizens and even a nearby monster. But in the end the tables are turned on Gubrious when he slips on a banana peel, causing everyone to laugh at his misfourtune

Transcript
Professor Inkling Octopus: (sobbing) We're suffering from the effects of the Miser Ray! It's a ray that can takes one person's sadness and spreads it to thousands of Octonauts like us at a time and makes the Octonauts cry and turns humans into statues!