After Daphne's dad puts her in charge of his new arcade, the Scooby-Doo Detective Agency gets hired for a new case when a giant hairy monster called Bigwig tries to put the arcade out of business.

The gang is at the local arena, looking to watch their favorite wrestlers of the CWF – the Coolsville Wrestling Federation – which has been recently purchased by the local toy manufacturing company. When some of the wrestlers of the CWF have started to be targeted in a series of mysterious accidents, the Scooby-Doo Detective Agency takes on the case to find out who's behind the hijinks.

The curse of the Were-Doo (Scooby family faints) threatens Scooby's family home.