Moishe Berenstein had disappeared from school a few days before the end of the year. When Dovid, Meir and Boruch - the 'Gimmel Gang" - go to visit him, they learn of the crime that had been committed to the Berenstein family. The boys have just stumbled upon their first mystery.
From then on they spend their days studying, praying and ... Spying? Can three young boys, best friends since preschool, handle such a case? Read on to find out how they solve this mystery while doing real detective work with a great Mitzvah!