In the video, a person is seen working on a car engine. The person is using a wrench to loosen a bolt on the engine. After loosening the bolt, the person removes a hose from the engine. The person then proceeds to replace the hose with a new one. The video shows the person using the wrench to tighten the bolt back into place, securing the new hose to the engine. The person's hands are visible in the video, and they appear to be wearing a watch on their left wrist. The engine and the hose are the main objects in the video, and the person's actions are focused on the task of replacing the hose.