The video shows two men in a dojo, one wearing a black belt and the other wearing a white belt. The man with the black belt is demonstrating a karate move to the man with the white belt. He starts by grabbing the man's wrist and then punches him in the stomach. The man with the white belt falls to the ground, and the man with the black belt raises his fist in the air. The dojo has wooden walls and a wooden floor, and there are Japanese calligraphy scrolls hanging on the walls.