"The InvestiGators are having a hard time keeping a low profile with their new headquarters being a giant robot towering over the city...But with their ears to the ground, Mango and Brash hear mysterious rumblings about Boulder Buddies...are they just the latest fad or part of a mob-run scheme? And could a rocky relationship from the InvestiGators' past be trembling beneath the surface?"--Provided by publisher.