Welcome to the block party from hell. After barely escaping with their lives, the gang seeks shelter in a nearby town that seems untouched by the disaster. But looks can be deceiving. Meanwhile, in our backup story, Secret Squirrel takes his first steps towards saving the world…maybe.

The apocalypse continues as Scooby and the gang explore a mysterious facility that may hold the key to their survival. Little do they know that a particularly powerful puppy and his gang of mutated mutts are waiting in the shadows—and they’re ready to attack!