In the video, a small black and tan dog with a red collar is seen walking around a pen with a brown cow. The dog sniffs the ground and the cow, and the cow moves its head towards the dog. The dog then walks away from the cow, and the cow continues to move its head. The pen is made of metal bars, and there is hay on the ground. The dog appears to be curious and playful, while the cow seems calm and interested in the dog.