Digging for clams at the beach, the Junior Detective League digs up a mystery instead. Did a depressed beachgoer commit suicide, or was he murdered by one of his friends? Then detective Richard Moore faces a challenge beyond his crime-fighting abilities: taking care of his ex-wife's new kitten! But the pesky furball leads him to the clues he needs to solve an impenetrable code. Could there be a new detective in town - one even cuter than Conan?