The video shows a person brushing the teeth of several cats. The first cat is a grey and white cat, followed by a white cat, and then a brown and white cat. The person uses a blue toothbrush to brush the teeth of the first cat, and then a pink toothbrush for the second cat. The third cat is brushed with a green toothbrush. The video also shows a close-up of a toothbrush with toothpaste on it, and a cat walking away in the background.