In the video, a man is seen holding a large gun that is loaded with tennis balls. He is standing in a room with white walls and a concrete floor. The man is wearing a gray t-shirt and has short hair. He is aiming the gun at a target in front of him, which is a tall white structure with several tennis balls attached to it. The man fires the gun, and the tennis balls fly off the target and hit the wall behind it. The video captures the moment the balls are shot and the sound of the gun firing.