In the video, a person is seen working on a car's brake system. The person is wearing blue gloves and is using a wrench to loosen the brake caliper. The brake caliper is then removed from the brake rotor, and the person proceeds to clean the brake rotor and the caliper. The person then places the brake caliper back onto the brake rotor and uses the wrench to tighten it back into place. Throughout the video, the person works carefully and methodically to ensure that the brake system is functioning properly.