The video shows a large group of fish swimming in the ocean. The fish are dark blue in color with some white and yellow stripes on their bodies. They are swimming in a school, moving in the same direction. The water is clear and blue, and there are rocks and coral visible on the ocean floor. There is also a person swimming in the water, but they are not the focus of the video. The video has the words "THE LAST DAY" written in white text on the screen.