In the video, a person is seen holding a plastic bottle filled with water. The person then places the bottle in the freezer for a few hours. After freezing, the person removes the bottle from the freezer and begins to squeeze it. As the person squeezes the bottle, the water inside begins to expand and the bottle starts to bulge. The person continues to squeeze the bottle until it is almost full to the brim with water. The video ends with the person holding the now-expanded bottle of water.