Klem and his pals aren't the most popular Grubbins in candy-starved Repugia, but Klem's hoping that will change once he brings a hoard of candy back from the human world. After all, it's Halloween, so there's candy everywhere! Unfortunately, there are also bullies everywhere, ready to steal all of Klem's sweet, sweet loot. Will he and his friends make it out alive, or are they doomed to an eternity of sugar-free torment?

Based on the Costume Quest world created by Tasha Sounart and Double Fine Productions.