在这部捣蛋鬼亨利喜剧片中,亨利是一个调皮的捣蛋鬼，在学校他照例带领着“紫手帮”（“Purple Hand Gang”）的一众小弟们搞各种破坏，恶作剧欺负老师。不交家庭作业也是家常便饭，可他万万没想到，这次会引发随后的一系列连锁事件。学校可能会因为竞争学校的一个邪恶校长而面临着关门大吉的危险……
When Henry fails yet again to hand in his homework for the umpteenth time, he has no idea that this will set off a chain of events which will see him forming an unlikely alliance with Moody Margaret, the infuriating girl next door, and his irritating little brother Perfect Peter, outwitting corrupt School Inspectors and toppling an evil Headmaster, winning a talent contest and facing his ultimate nemesis with no way out - all because he is trying to save the very school which he has always professed to hate!
孩子本天真，天真成智慧啊。
