Mr. Munn is going out of town for a principal's conference and leaves Ellen in charge. She decides she'll rule the school differently, with lighter rules, no detention and more field trips. Of course, her plan backfires when all the detention kids take over Catherine's pharmacy, someone cleans up the principal's room, Pam spends the entire French club budget redesigning the teacher's lounge in 17th Century France style, Rusty is almost electrocuted while taking the kids to a field trip and much more. Ellen decides then to have a 8:30pm basketball to help the kids release their anger, but the gym is locked. She goes to Mr. Munn's place to get the key and finds him sitting watching television. Turns out he just wanted a little time off and thought Ellen was doing a better work than he. (thetvdb.com)