The video shows a close-up of a car engine. The camera focuses on a chain that is moving back and forth. The chain is made up of metal links and is attached to a gear. The gear is rotating, causing the chain to move in a circular motion. The engine appears to be well-maintained and is likely part of a newer model vehicle. The lighting in the video is dim, and there are no visible brand markings or logos. The video does not include any people or other objects, and there is no sound.