In the video, we see a small gray and white mouse running around in a cage with wood shavings on the floor. There are colorful toys scattered around the cage, including a rainbow-colored ring stacker. The mouse is seen running towards a black plastic door, which is being held open by a human hand. The mouse then runs through the door, which is then closed by the same hand. The video captures the mouse's movements and the interaction between the mouse and the human hand.