在一座深山的庙里有个老和尚和七个小罗汉，老和尚的法号是休休，他拥有绝世的武功。他创立了一套独特的音律心法，并在此基础上建成北斗七星罗汉阵。一日休休有事下山了，七个小罗汉脱离了师傅的管束，整日玩乐，连每天必修的武功都荒废了。

庙里藏着稀世珍宝，一个叫做夺宝四人组的组合得知这个消息，一直守在庙外，当休休下山时，他们以为机会来了。他们化妆成罗汉，根据藏宝图开始了寻宝之旅。七小罗汉为了保护庙里的珍宝设计了一连串的陷阱，将夺宝四人组困在里面。夺宝四人组里的九纹龙炸毁了寺院，还抓住一名小罗汉作为人质躲在休休的禅房里。九纹龙误打误撞，竟然得到了稀世珍宝——项羽的黄金战衣，穿上战衣的九纹龙刀枪不入，七小罗汉根本不是他的对手。被敌人赶下山的罗汉们此时才后悔没有听从师傅的教诲，认真练武。不过七小罗汉没有就此放弃，他们拿起罗汉棍，利用水的优势摆起了罗汉阵，和九纹龙做最后的对决。

In a temple deep in the mountains, there was an old monk and seven young arhats. The old monk’s dharma name was Xiuxiu , he has peerless martial arts. He created a unique set of rhythm and heart method, and built the Big Dipper Arhat Array on this basis. One day, Xixiu went down the mountain because of something, and the seven little arhats broke away from their master's control and played all day long, even neglecting their daily compulsory martial arts.

There are rare treasures hidden in the temple. After hearing the news, they kept guarding outside the temple. When Xiuxiu came down the mountain, they thought the opportunity had come. They dressed up as arhats and started a treasure hunt according to the treasure map. The Seven Little Arhats designed a series of traps in order to protect the treasures in the temple, trapping the treasure hunting group of four inside. Jiu Wenlong, one of the four members of the Treasure Hunting Group, blows up the monastery and takes a little arhat as a hostage to hide in Xiuxiu's meditation room. Jiu Wenlong accidentally hit and bumped into it, and got the rare treasure-Xiang Yu's golden battle suit. The Jiu Wenlong wearing the battle suit is invulnerable, and the Seven Little Arhats are not his opponent at all. The arhats who were driven down the mountain by the enemy regretted not following their master's teachings and practicing martial arts seriously. But the Seven Little Arhats did not give up. They picked up the Arhat sticks and used the advantage of water to set up an Arhat formation, and had a final duel with Jiuzhilong.