 While finding the missing gun, they discovered that Grey Wolf, an ex-convict who escaped from prison, is possibly connected with the missing gun and even more surprisingly, Grey Wolf is actually having close communication and contact with students in Ying Ye.Among the teenagers, they had to cooperate to find Officer Xia's missing gun, and this let Ah Jiang and Xia Tian, who have been at loggerheads since they were young, to develop feelings for each other.Fang Wei, who has always liked Xia Tian, now becomes the love rival of Ah Jiang.