Cody and Tapeworm go to math camp for a week, leaving Zack on his own for a few days. Meanwhile, London gets her learner's permit and while Mr. Moseby teaches her how to drive, her car ends up in the Tipton hotel wall. When Zack starts to miss Cody, he persuades London, Maddie, and Muriel to drive up to camp to check on Cody with him.