The school is having a science fair and Arvid, Dennis and Sarah all plan to enter. But they all inadvertently sabotage each other's project and try to cover it up. And Moore learns about this and tries to get them to admit the truth but can't.
It's Parent's Day when the parents of the students come and see how their children are taught. Eric's father shows on the wrong day and Eric doesn't appear to be proud of him. He later shows up on the right day and Moore tries to get Eric and his father to talk.