The summer after fifth grade, Cheesie and Georgie go to camp in Maine, where they discover that they are bunking with the older kids and Cheesie must face off in a Cool Duel with dreaded Kevin Welch.
Sixth-grader Ronald "Cheesie" Mack, finds the best way to earn points against his older sister is to become popular, and decides to join the cross-country team, help his best friend run for class president, and ignore her attempts to embarrass him.
"Cheesie and his best friend, Georgie, pull off a fantastic UFO prank, but when things go wrong, the victims of the prank plan a sinister plot as payback"--