Jack Donegal is an engineer, toy inventor and the head of his own toy company but not a detective until he stumbles into a strange situation. While on a business trip, he stops to purchase a 1914 teddy bear at an estate auction. While still on the auction grounds, armed thugs, who mistake him for a Dalton Starks, seem to think he’s in possession of something they want. Although police rescue him from his first encounter with criminals, Jack and Andy Westin, his marketing manager, roommate and friend, begin to think there’s something special about this teddy bear to make it interesting to criminals. They engage in a cat and mouse hunt with various members of the criminal world, but who are the cats and who are the mice? With the help of their combined wits and various technical gadgetry including toy parts and prototypes, Jack and Andy help bring several criminals to justice. With two personalities like those of Jack and Andy, there is bound to be some silliness along the way in this comedy mystery.