The video shows a close-up of a car engine. A person's hand is pointing to the engine's chain, which is a crucial part of the engine's operation. The chain is made of metal and is attached to the engine's gears, which are also made of metal. The engine appears to be well-maintained, with no visible damage or wear. The person's hand moves slowly, allowing viewers to get a clear view of the chain and gears. The engine's components are clean and shiny, indicating that the engine is in good condition. The video provides a detailed look at the inner workings of a car engine, showcasing the intricate design and complexity of the machine.