In the series finale, Sarah's class field trip is cancelled due to lack of funding, so Charles volunteers to direct a benefit show to raise the necessary money. Buddy gets various acts to audition for Charles, including the entire Powell family. At the same time, Charles finds out that he has to take an exam to get accepted at Princeton for his post-graduate work, and it happens to be on the same date as the benefit. Buddy fills in as director, but soon everyone realizes that he is not organized and cannot handle the job. As Charles is about to take the exam from Prof. Hastings, he realizes he has let everyone down at the show. Stay tuned for the surprise ending of Charles in Charge!