Shrek gets in the Halloween spirit by challenging his fairytale friends to come up with scary stories for a contest. But the gang learn that they'll have to spend the night in Lord Farquaad's haunted castle before the winner is named.

Of the famous Three Little Pigs, Heimlich is the one porker who finds a conspiracy around every corner. When The Big Bad Wolf moves in next door, Heimlich tries to warn his piggy pals Horst and Dieter that this may not bring a fairy-tale ending. Tired of hearing him 'cry wolf,' they ignore Heimlich's warnings until it's almost too late for them to live happily ever after. The chase is on!