Mango and Brash investigate the theft of art stolen from a truck on its way to the museum. The Investigators go undercover at the museum's art gala to catch the thief.
InvestiGators Mango and Brash hear that the popular green glowing rocks called Boulder Buddies are disappearing. They go undercover to learn about the rocks' connection with a mobster, and learn that a painful part of Brash's past has come back to haunt him.