Noelle and Todd track down the owner of the car that ran over Misty's brand-new bike.

Can the Third-Grade Detectives crack a case without Mr. Merlin?

Todd uses clues from earwax and a pink handkerchief in order to discover which of his schoolmates has been in his treehouse.

With the help of their third-grade teacher and classmates, Noelle and Todd discover who sent an anonymous letter to Amber Lee.

Todd must conquer his fear of spiders and cobwebs in order to help his third-grade class catch a thief.