The video shows a close-up of a car engine with a rag underneath it. The engine is in motion, with the chain moving back and forth. The camera pans around the engine, showing different angles of the moving chain. The engine appears to be well-maintained and clean. The rag underneath the engine is dirty, indicating that it has been used for some time. The engine's sound is audible in the background, and the chain's movement is smooth and continuous.