The video shows a large brown dog with a white chest and paws. The dog is wearing a collar and is being walked on a leash by a person wearing black pants and boots. The dog is walking on a carpeted floor, and there are several yellow tennis balls scattered around. The person is holding a red leash and is guiding the dog around the room. The walls of the room are made of plywood, and there is a sign on the wall that reads "WELCOME TO K9".