Hacker makes Buzz’s dream come true and gives him his very own donut shop in Radopolis. But it’s just part of Hacker’s latest scheme. Working out of the donut shop, Hacker makes confetti out of magnetite and uses it to put all the Radsters to sleep and takes over the cybersite. The kids must engineer a huge confetti cleaner to save the Radsters. Part of the "Cyberchase" series.