A man in a white karate gi with a black belt repeatedly strikes a row of glass bottles lined up on a shelf, breaking them with his hand. After the final bottle is shattered, he turns to face the camera, revealing a second man in a white gi standing behind him. The scene then cuts to a close-up of a hand holding a single glass bottle, which is then struck and shatters against a wall. The setting is an indoor room with a shelf, a doorway, and framed pictures on the wall.