Criminals have robbed the city's bank, and the police are on hand to investigate the robbery, talk to witnesses, and apprehend the thieves.

A little fish makes off with the hat of a sleeping bigger fish, but his hopes of getting away with the theft may not turn out like he planned.

When someone breaks into Mama Tova's bakery and tries to steal her secret recipe, the Aldens must use their mystery-solving skills--and their taste buds--to solve the case.

Mouse learns about the dangers of jumping to conclusions when he and Ferret prematurely accuse Raven of stealing Ferret's raspberries.

Nancy and her friends investigate when money disappears from the Pencil Box's cash register, but when the clues point to the clerk, Rodger, Nancy refuses to believe he is responsible.

Discovering that his trail mix is slowly disappearing throughout the day, Peck embarks on a daring quest to catch a trail mix thief.

A little fish makes off with the hat of a sleeping bigger fish, but his hopes of getting away with the theft may not turn out like he planned.

Someone has been stealing and leaving behind little green sneakers, so Bradley, Brian, Nate, and Lucy trail their new teacher, who wears the same shoes in normal size.

The Third-Grade Detectives try to prove that a grocery store owner is innocent of selling stolen oysters.

When Drake discovers that his friend and fellow Dragon Master, Bo, is trying to steal the Dragon Stone, he wonders if the dark wizard might be behind it, and he must try to find a way to protect the stone while keeping Bo's family out of danger.