Kirby Katz has big dreams of making his fortune as an entrepreneur, just like his role model, hotel magnate William T. Williamson. But Kirby discovers that operating a “snow hotel” in the schoolyard comes with its own set of challenges: sourcing the best snow blocks, staff “team-building,” marketing, and competition from Brewster’s Best Five-Star Inn — run by the Bear and his gang of the meanest kids in Grade 6. Worst of all, when Brewster’s gang starts stealing Kirby’s best ideas, all evidence points to a “mole” among his own staff.