Scooby-Doo! and the Creepy Ghosts

Civil War ghosts Jed and Caleb, brothers who fought as soldiers on opposite sides of the war, come to life in New Orleans.

Dr. Phineus Phibes develops a stealth device (an invisibility ray) and renders Agents 1 & 2 invisible so they can travel to a top secret government weapons facility and steal a deadly disintegration ray. After searching for Phibes' cloud ship and getting sidetracked by a stowaway sheep and a trip to get ice cream (which they share with the sheep), Scooby and Shaggy show up at the weapons facility to foil Phibes' agents. To Scooby and Shaggy's surprise, they find the old gang (Fred, Daphne and Velma) already on the case. The old gang is at the facility investigating a "ghost report," but Scooby and Shaggy set them straight, explaining that the "ghosts" are actually Phibes' invisible agents. With Scooby and Shaggy leading the way and the whole gang working together, Phibes is foiled again and the world is safe for another day.

The gang follows a mysterious figure through a marsh to the house of a latter-day Dr. Jekyl, whose alter ego is apparently a jewel thief.

The authorities mistakenly suspect that Shaggy and Scooby stole two valuable Samurai swords from a museum. But the two friends saw the actual thief--the ghost of an evil Samurai! To clear themselves, Scooby and Shaggy must solve the mystery of the missing swords.

For a Scooby-Doo birthday reunion, the kids join Mommy and Daddy Doo and the Doo puppies, Scoobert, Rooby, Howdy and Skilly, at the Knittingham Puppy Farm. There, Scooby is presented with a family heirloom, a jeweled dog collar. But the gift comes with the family curse--pursuit by the Dogcatcher Ghost, who seeks the collar for himself!