One Halloween evening, young piglet Cliffy Belmart and his rebellious friends decide to test their bravery by tee-peeing Barnyard Town's Ancient Castle ruled by Darkness. But as soon as the fun begins, horrendouse evil trees sweep them all into the castle. Instantly aware of his son's peril, Robert Belmart equips himself with a slew of weapons and a plan to get Cliffy back. But first, Robert must tackle six different spooky worlds - each with their own tough monsters and dangerous bosses. Is Robert a bad enough dude to rescue his son?