Watch out, villains, Scooby-Doo is on your trail! A globetrotting canine Sherlock Holmes with a heart of pure cowardice, Scooby-Doo shivers and cowers in corners, but he always solves the mystery — with laughs. In the fourth fun-filled season of the classic comedy-mystery show, the Great Dane’s fearless little nephew, Scrappy-Doo, and brave but hapless uncle, Yabba Doo, continue investigating spooky cases, with the help of the pooches’ four teenage human friends: Freddy, Daphne, Shaggy and Velma, of course. Swerving around in their tricked-out Mystery Van, the gang embarks on a hilarious variety of adventures, including protecting the priceless Maltese Mackerel, saving the lovely Miss Earth Beauty Contest ladies, battling vampires and zombies unleashed by an evil hypnotist, and rescuing a friendly alien from the clutches of a circus owner. When it comes to "who done it," Scooby-Doo and his pals dig up the answer — with plenty of fun along the way.