Jigsaw Jones knows that mysteries are best solved when one looks at all the pieces to solve the case. So when he gets caught in a spooky attic, he tries to put all the pieces together.

Someone stole 'Old Rusty, ' Ralphie Jordan's trusty bicycle. Jigsaw and Mila hit the trail to track down the thief. But one piece of the puzzle doesn't fit. Who would take a hand-me-down bike? Solving this case is an uphill ride for ace detectives Jigsaw and Mila.

Eddie brought his baseball cards to school and now they seem to be missing. It's up to Jigsaw Jones and his partner Mila to solve this puzzling case.

When Ms. Gleason announces that a surprise author will be visiting the class, but will not reveal the author's name, the class hires detectives Jigsaw and Mila to discover the author's identity and solve the case.

Jigsaw Jones goes undercover to find out who has been stealing brownies from Mike and Mary's restaurant, while competing with a classmate to see who will be the first to solve the case of a missing football.

The prize for the pet show is missing. Jigsaw enters his dog Rags in the contest and has an idea to solve the case.

Jigsaw Jones becomes suspicious when ghosts haunt his classmates around Halloween and Bobby the ghost-buster steals his clients.

Jigsaw's class is getting ready for parent's night. They are painting pictures to show their families. One minute they are coloring. The next minute Geetha's painting is gone!