With his nephews and niece, everyone's favorite rich uncle, Scrooge McDuck, treks from his mansion home in Duckburg in search of the long-lost loot of the thief Collie Baba. But finding the goods isn't quite what it's "quacked" up to be! Their thrilling adventure leads to comical chaos, magical mayhem, and a lesson about what is far more valuable than money, gold and jewels.
After going their separate ways, Scooby-Doo, Shaggy, Velma, Daphne, and Fred reunite to investigate the ghost of Moonscar the pirate on a haunted bayou island, but it turns out the swashbuckler's spirit isn't the only creepy character on the island. The sleuths also meet up with cat creatures and zombies... and it looks like for the first time in their lives, these ghouls might actually be real.
As the Joker visits Metropolis with a plan to kill Superman for Lex Luthor, Batman pursues the clown to Superman's turf.
