Is today's cafeteria special a little pointy-eared mythological being of Irish decent, or is that an unlucky leprechaun in your lunch? It's an average morning for Leyton and Wade Tardy when Brendan, the unlucky leprechaun, joins them for a bowl of cereal. Nobody knows where he came from and it's clear that he is lost his pot of gold. Too bad Fibby Mandible, the school's bossiest, snobbiest girl, and Barton Slugg, the worst archenemy ever, have begun a search to claim the treasure for themselves. On top of that, they are trying to haave St. Patrick's Day changed to the Feast of the Millionaire Nun. Will the Tardy Boys be able to bring back a little luck to the situation?