As Nate the Great sets to work on his first international case, he searches for a lost "something" and saves the King of Sweden from a troublesome traveler.

When Horrible Harry's pet cat, Googer, sneaks a ride and gets into the school building, third-graders Harry and Doug have to catch him before anyone else does, which means going into some forbidden places.

Froggy and his father search the house for the mislaid items they will need on their bike trip.

Invites young readers to identify shapes while helping a small girl search the fair for her pet monster.

A famous author is coming to visit and Eva and her classmates are assigned to write a story--but Eva Wingdale is totally distracted because her pet bat, Baxter, has gone missing, and she suspects that the sneaky squirrels have something to do with her missing pet.

Kimberly the koala fairy needs Rachel and Kirsty's help to find a missing baby koala before it ends up in Jack Frost's icy zoo.

After playing a trick on his sister by stealing her toy rabbit, a mischievous little boy wonders who the new troublemaker is when his toy raccoon disappears.

King's human, Kayla, has baked some treats for a friend's new puppy, Thor, but some go missing and it is up to King to find the culprit.

Cam Jansen, with Eric at her side, helps solve the mystery of what happened to Mr. Day's tennis trophy.

Mr. Fish feels nervous venturing deep in the sea to look for Ms. Clam's lost pearl until Miss Shimmer helps him conquer his fear of the dark.