"Chips for the Fish Monger" is the second episode of 33 Half Moon Street, which aired on May 20, 1965. In this episode, Investigator Aubrey Mason takes on a case tied to the local fish market, where he must untangle a web of deceit involving fish smugglers that could disrupt the local economy. The episode features Mason using his wit and detective skills to navigate through the fishmongering underbelly.