P.T. and his friend Gloria must solve a mystery at the world's wackiest motel: The Wonderland--

When the city is overshadowed by a series of bank robberies and a wrongful murder charge, Sam, Pippa, Thomas, and Max embark on an investigation to find the real killer only to stumble across a wider plot against New York.

Santa's Workshop Holiday Spectacular at the Colchester mansion is a long standing tradition in Cedarville, however Griffin, Ben, and Antonia are not happy to find that they have been volunteered as elves by their friend Logan and can not get out of it--but this year the pageant seem plagued by frequent electrical outages, and during one of them the valuable antique known as the Star of Prague disappears from the giant Christmas tree, and as they are...

When someone tries to sabotage the maple trees on her friend Franklin's family farm, Truly Lovejoy rallies the Pumpkin Falls Private Eyes to investigate.

After twelve-year-old Addison Cooke's uncle unearths ancient Incan secrets in Peru, he is kidnapped by a shadowy organization intent on stealing the treasure unless Addison and his friends can decipher the clues first.

Teddy Fitzroy must solve the crime of the kidnapped rare and expensive panda, Li Ping.

Twelve-year-old Truly Lovejoy's family moves to a small town to take over a bookstore. Soon, she has to solve two mysteries involving a missing book and an undelivered letter--

Ted Hammond, the only sixth grader in his small Nebraska town's one-room schoolhouse, searches for clues to the disappearance of a homeless family.

When a scientist working on a top secret invisibility suit goes missing, Alice puts her detective skills to the test to determine if Dr. Lerner disappeared with help from his invention or more sinister means.

Visiting a ranch and commune in California Gold Rush country, Julie stumbles on a mysterious message that hints at long-lost treasure and she endeavors to find it before trouble shows up.