The Siege at Thorn High

Edwin promises his sister on her deathbed to find the son she had long ago abandoned. Edwin's search leads him to become a deputy teacher at a middle school for juvenile delinquents in Duri, Jakarta. There, he must confront the most vicious students in order to find his nephew. When he finally locates the boy, a city-wide riot erupts and Edwin finds himself trapped in the school, with the ruthless children thirsting for his blood.