Has Hacker finally found a way to take down Motherboard forever? All bets are off when Hacker stumbles upon the secret location of the “Program Proliferator”—a piece of hardware capable of reprogramming Motherboard’s operating system. It’s buried right under Dingerville Park, home of The Dingerball Series, a once-in-every-four-year championship game less than a week away. While retrieving the device, Hacker suctions up all the ballfield’s dirt, leaving a giant crater in the ground—and in the hearts of all Cybercitizens. No one is more distraught than Lefty, the local seven-year-old pitcher Matt’s been mentoring. The CyberSquad must figure out how to refill the missing dirt before the big game! Could composting lead to a home run?