 For a week, some students are able to take over the position of teacher to get a feel for what real teachers deal with every day. Lisa and Screech are taking over gym class, Kelly is heading up a history class, and Zach gets to play the role of principal. It s not all fun and games, as Zach finds out when he becomes the person between backing Kelly up in her teacher position and Slater as a friend and trying to give him a break. Will Zach put friendship and popularity before responsibility?