One's Trash is Another's Treasure

After Old Man Jenkins' false god incident is finally cleared up, Bikini Bottom is given a barely-noticeable revamp. But the joy isn't forever as it's revealed that the surface garbage is courtesy of a controversial method of the original branch of Bermuda Currents Incorporated called Loot Chest Inc, the famous suppliers of all garbage that make animal-scale civilizations on both land and sea. The one who dumped it for years is a rat named Mister Looty who made a secret profit on this method to spite his superiors for denying his consolation prize after an act of greed. Now he's polluted loads more places in the Pacific Ocean as a gigantic marketable campaign. But when he fails to see that his campaign has serious and poisonous consequences, it's up to the Lodgers to stop him.