On the eve of Kim's Junior Prom, Drakken begins his first truly serious attempt to conquer the world while trying to find Kim's weakness. Meanwhile, when handsome new student Eric comes between Kim and Ron's close friendship, they are forced at long last to examine their true feelings for each other and the nature of their relationship. 

Kim lands in library lock-up after she's nailed for an overdue, and mysteriously missing, book. Ron realizes that HE borrowed and lost the book and must back-track through a series of recent missions in an attempt to track it down.