The video shows a group of puppies and kittens playing together in a pen. The puppies are of different breeds and colors, including black, brown, and white. They are seen playing with each other and with toys. The kittens are also of different colors and breeds, and they are playing with the puppies and with toys. The pen is covered with wood shavings, and there are toys scattered around. The puppies and kittens are seen biting, pawing, and playing with each other in a friendly manner.