The video shows a close-up of a car engine with various components visible. The camera pans over the engine, showing the alternator, which is a crucial component for generating electricity to power the vehicle's electrical systems. The alternator is connected to the engine through a belt, which is used to transfer the mechanical energy from the engine to the alternator. The alternator is made of metal and has a series of coils and wires inside. The video provides a detailed view of the alternator and its surroundings, including other engine parts and hoses.