If he's taught them one thing, he's taught them too much. 6.91/10 2021-09-02 22 minutes.HDWhen Jack is disappointed with the popcorn maker he orders, he and the students plot revenge. Helen goes back to school to get her high school degree and chaos ensues in Principal Durbin's office in her absence.An: 2021Studio: NBC, PeacockPays: United States of America