In the video, a man is seen working on a car's brake system. He is using a hammer to loosen the lug nuts on the brake rotor. After loosening the lug nuts, he removes the rotor and replaces it with a new one. He then proceeds to tighten the lug nuts to secure the new rotor in place. The man is wearing a yellow shirt and appears to be in a garage or workshop setting. The video provides a clear view of the brake system and the process of replacing the rotor.