In the video, a man is seen working on a car engine. He is using a wrench to unscrew a bolt and then removes the part from the engine. The man then proceeds to put the part back on the engine. Throughout the video, the man's movements are deliberate and precise, indicating that he is experienced in working with car engines. The video provides a clear view of the engine and the man's actions, making it easy to follow along and understand the process.