Eager to start making money out of the barren wastelands surrounding the city, Malice builds a Monster amusement Park. Tumi tricks Pax and the gang into being the test subjects for the cheaply built park, and it isn't long before Malice's cost-cutting short cuts reveal themselves and the park becomes a seriously dangerous place to be. The kids need all their wits to thwart the appetites of the deadly and clever sock monsters, but thankfully Teeter and the Blobby Elvis monster are on hand to help.