Mr. Burns loses all of his money through a series of foolish investments. Burns recalls how Lisa Simpson goaded him so roughly when he spoke at her school and decides to enlist her to help him gain his fortune back. At first, Lisa distrusts the evil tycoon, but together they start a recycling business that earns them a fortune, one nickel at a time. Burns soon branches out, starting a fish and dolphin trapping business that disgusts Lisa with its brutality. Lisa denounces Burns yet again, refusing to accept any of his money.