The gang - Fred, Daphne, Velma, Shaggy and Scooby-Doo--must save the world as it spirals into a wasteland. But when the group finds out who is behind the destruction of the world, they may not be able to move on! Velma's brother turns sibling rivalry up to extremes in his quest to rule the monsters...but the creatures are more interested in attacking his skyscraper than in being his loyal subjects. Can Velma, Scooby and the gang stop him from carrying out his plans to mutate the creatures even more? Plus, in the backup story: Brainy super-dog Scrappy-Doo and his pet human kid are hot on the trail of a puzzle. Monsters are migrating, but to where? The next chapter for the Mystery Inc. gang is collected here in SCOOBY APOCALYPSE VOL. 3. Collects SCOOBY APOCALYPSE #13-18.