In the video, there are two kittens, one on top of a cage and the other inside the cage. The kitten on top is standing on its hind legs and trying to climb over the cage, while the kitten inside is reaching up to the top of the cage with its front paws. The kittens are both grey and white in color, and the cage is made of metal bars. The video captures the playful interaction between the two kittens as they try to climb over and play with each other.