The video shows a group of mice in a cage. The cage is filled with wood shavings, and the mice are moving around. There are two adult mice and several baby mice. The adult mice are larger and have gray fur, while the baby mice are smaller and have black and white fur. The mice are seen walking around, sniffing, and interacting with each other. The video is shot from above, and the camera moves around to show different angles of the cage and the mice.