When Joe and Wishbone take a mystery train ride to solve a pretend murder, they encounter a real crime that must be solved before the train arrives.

Wizard and his friends are clueless when they are sent on the trail of a blueberry pie thief, until Wizard hits on a plan that is sure to nab the sweet-toothed pilferer.

A fiery glowing eye in a museum, the abduction of Ned, the code name Cyclops, and a pilotless helicopter draw Nancy and her friends into a dangerous investigation.

Nate the Great follows the clues to find his lost dog, Sludge, in a department store.

Dink, Josh, and Ruth Rose are having a sleepover-in a castle! Dink's favorite mystery writer, Wallis Wallace, hjas invited them for a visit. But as soon they arrive they start hearing screams behind the walls. Not to worry every castle is haunted.

Even a deep snow the week before Christmas can't keep Nate the Great and his dog Sludge from finding the special card sent to Annie's dog Fang by his mother.

When there is a theft at the ranch and Miss Beulah is kidnapped, Hank the Cowdog uses his sleuthing skills.

"The gang is having fun at the country fair. Shaggy and Scooby get in the spirit by judging baking contests and chili cook-offs..."

When someone steals the money the town has been collecting to help the ducks, Josh and his friends try to find the thief.

A father and son detective team investigates the mystery surrounding a book that that makes its readers commit terrible crimes, and a sinister organization known as the Combination.