Scooby Doo meets the Swat Kats

On another terrifying mystery, the 13th Ghost lures Mystery Inc. into a trap by throwing them into a portal. The portal takes the team to MegaKat City, where they meet the SWAT cats. Now, with the 13th Ghost teaming up with Dark Kat, Dr. Viper, the Pastmaster, the Metalikats, Hard Drive, Madkat, Volcanus, Mutailor, and Chopshop, Scooby, Shaggy, the gang, and the Swat Kats will have to work together in order to save MegaKat City and get back home.