A strange green glow is coming from the old house up on the hill, and when Pablo and Jane decide to inquire they make an unexpected discovery! Zapped into the Monster Dimension by the evil cat, Dr. Felinibus, they must now find a way home in the broken Hot Air Time Machine, with a little help from their friend Dr. Jules (a nineteenth century scientist trapped inside the body of a rat).

Help Pablo, Jane, and Dr. Jules as they race for their lives through Lopsided London, Terrifying Transylvania, Horrid Hawaii to find the missing parts of their machine and avoid the terrors of the Monster Dimension.