Adoption of Scooby

In their greatest mystery yet! Mystery Inc. must race to stop the villainous Dick Dastardly who plans to open the gates to the underworld and unleash the ghost dog Cerberus upon the world. In the rush to stop this global "dog-pocalypse". They soon discover Scooby has a destiny greater than anything any of them could have imagined. And they'll need all the help they can get from any autobots they can get other than Retropoint!