It's the annual Flea Market in A-Town, and the Class of 3000 is eager to both buy and sell items-Madison is particularly eager, bringing a box of fleas. As they munch on the disgusting Sloppy Joes that come directly from the factory next to the nuclear waste refinement plant, the kids discover that nearly everything at the market is a pun- for example, a stand selling designer labels is just selling the labels! Sunny brightens up their day by bringing a box of his old junk to sell. The kids eagerly tear into his high-school yearbook, but Sunny acts suspicious. He drops a map that was contained in the book, leading the class to believe that Sunny is a pirate (they are helped in that conclusion by a series of funny coincidences). They follow the map and meet members of Sunny's 80's funk band, the Funkaneers. Eventually, the kids discover a secret room beneath their own classroom...and it contains a giant, monstrous blob! Sunny reveals the secret of the blob-it was created when he and ...