All is not well in Perfectamundo, a dome-enclosed cybersite, when orange spots are discovered building up on the dome's interior surface, blocking the site's precious sunlight. What source could be responsible for the spots multiplying so fast? Is it Hacker's new factory that pours out orange clouds through smoky stacks? It can't be that new Digifizz toy, with its tiny burst of colorful sparkles shooting into the air each time it gets used. With time running out, the CyberSquad must come to grips with the power of multiplication and use it to undo the site's pollution problem.