The video shows a person petting an alligator while it is underwater. The alligator is lying on its side, and the person's hand is seen petting the alligator's back. The alligator appears to be calm and relaxed as the person pets it. The water is clear, and the alligator's scales are visible. The person's hand is visible in the video, and the alligator's eyes are open. The video is shot from a close-up angle, focusing on the interaction between the person and the alligator.