Mollie McCud, a 14-year-old with a passion for solving mysteries, gets the chance to put her skills to the test when her grandfather's missing urn becomes an intriguing case. Teaming up with Detective Jack Weider, a seasoned New York City detective, they start unraveling clues that lead them down an unexpected path. As they dig deeper, they uncover a connection between their investigation and the city's most significant mystery. Get ready for an exciting adventure as these unlikely partners embark on a thrilling journey of discovery in this suspenseful film.