In the video, a police officer is walking down a hallway with a dog on a leash. The dog is sniffing the lockers along the wall. The officer is wearing a uniform and has a walkie-talkie on his belt. The dog is a brown and black German Shepherd with a black collar. The hallway has white lockers and a red wall on one side. The dog appears to be focused on the lockers, sniffing them thoroughly.