It's Sam's birthday, and Olivia and her friends are celebrating it at an amusement park, which has the most incredible ball pit in the whole of Monstrocity. But little do they know, Marquis Three-Eyes, a fearsome villain, has bewitched the balls in the pit, and from its depths dozens of evil Olivias begin to emerge who want to destroy the entire amusement center.

Can the wolf girl and her friends stop the clones and the malicious Marquis Three-Eyes before its too late? There are no dull days in Monstrocity!