Jack Frost is at it again! He and his goblins are always causing trouble. This time, they've stolen the three magic hats that make Wetherbury's summer carnival so much fun. If Kylie the Carnival Fairy doesn't get them back soon, the carnival will be ruined! Rachet and Kirsty can't let that happen. They're determined to help Kylie track down the hats! But will they find them in time, or will this year's big carnival be a big flop?

Jordan and his sister Karla beg their parents to take them to a big carnival that has opened on the other side of town. When they arrive, the two kids are delighted by the rides, the sideshow, the interesting displays, and the great food booths.

When a young girl, her vampire father, and fairy mother use a little magic to help a run-down carnival attract customers, what could possibly go wrong?

Carlos ignores his father's advice about being careful how he spends his money at the carnival, and soon his pockets are empty.

On the run as suspected murderers, the unlucky Baudelaire orphans find themselves trapped in the Caligari Carnival, where they must masquerade as freaks in order to hide from the evil Count Olaf.