Movie's information

The Synopsis:

Edwin promised to his sister on her death bed to find her son she gave up long time ago. Edwin's quest brought him to become a substitute teacher in Duri High School, Jakarta, a school for juvenile delinquents. There he must face the most violent students to find his nephew. When he eventually finds the boy, a city-wide riot erupts and Edwin is trapped im the school with the cruel kids out for his blood.