In the video, a person is seen working on a large machine. The machine appears to be a water heater or boiler, as it has a large tank and a control panel with various dials and switches. The person is wearing an orange shirt and is using a wrench to turn a bolt on the machine. The background is a dark room with a black wall and a white electrical outlet. The person's actions are deliberate and focused, indicating that they are likely performing some sort of maintenance or repair work on the machine.