"Hamster Holmes solves mysteries with his sidekick, a firefly named Dr. Watt! Corny O'Squirrel is having trouble sleeping because someone keeps knocking on his door late at night. Can they find out who is knocking, and why?"--

When the fluffy dice of Melvin the bus driver turn up missing, Bunny and Jack, two animal detectives, investigate the case.

While having a picnic on the docks, animal detectives Bunny and Jack meet a dog whose one and only lawn chair is missing, and they set out to solve the case.

When her friend Eric loses the key to their locker at the ice skating rink, Cam uses her photographic memory to solve the mystery.

When fifth-grader Cam Jansen and her friend Eric go to a birthday party, she uses her photographic memory to solve the puzzle of the dinosaur count.

Nate the Great and his cousin Olivia are on the case of a runaway turkey, but unfortunately the clues appear to contradict each other.

Cam uses her photographic memory to help a classmate find the tooth she lost at school.

Cam Jansen must use her photographic memory to help find a magician's lost bird.

Inspector Hopper and his partner McBugg solve a mystery in each season of the year.

Investigating the mysterious footprints of a home invader who their inventor friend believes is trying to steal his ideas, Hamster Holmes and Dr. Watt work to identify the animal responsible for the footprints before it is too late.