In the video, a large husky dog is seen walking on a treadmill. The dog is wearing a harness and appears to be walking at a steady pace. The treadmill is located in a room with green carpeting, and there is a person standing nearby, watching the dog. The dog seems to be enjoying the walk, and the person is observing the dog's behavior. The room is well-lit, and there are no other significant objects or actions visible in the video.