The video shows a person using a wrench to tighten a bolt on a piece of machinery. The person is wearing a black jacket and is standing in front of the machinery. The machinery appears to be a large piece of equipment, possibly a tractor or a construction vehicle. The person is using the wrench to turn the bolt clockwise, indicating that they are tightening it. The background is not clearly visible, but it appears to be an outdoor setting with a concrete floor.