You see a barefoot young man join the fight. He pins the teacher against a wall and stands over him. The teacher raises his hands to shield his head, but it does not work. The barefoot man's right fist is tireless. He clocks the teacher six times before the camera turns away. Later you see the teacher's face covered in blood.
You see an older man fighting too. He is thick at the middle, balding, wearing khakis. He punches a woman while the barefoot man holds her arm. He assists in the thrashing of the teacher. You see his right hand whooshing through the air, connecting with flesh, and you look for his left hand but it is gone.
In its place is a metal hook.