In the video, a golden retriever is seen playing with a green ball on a black mat. The dog is wearing a collar and is being trained by a person who is holding a treat in their hand. The person is giving commands to the dog, and the dog is following them by picking up the ball and bringing it back to the person. The person then gives the dog a treat, and the dog continues to follow the commands and bring the ball back. The video shows the dog's obedience and training as it performs the task.