The video shows a large shark with sharp teeth and a pointed nose swimming in the ocean. It is dark blue in color and has a streamlined body. The shark is seen attacking a smaller fish, which is light blue and has a slender body. The shark's mouth is wide open, revealing its sharp teeth, and it appears to be biting down on the smaller fish. The ocean water is a deep blue color, and there are no other visible creatures or objects in the video.