The video shows a large group of fish swimming in the ocean, with a shark swimming nearby. The shark is seen swimming through the water, with its mouth open, revealing its sharp teeth. The fish are swimming in a tight group, moving in the same direction as the shark. The water is a deep blue color, and the lighting is dim, creating a sense of depth and mystery. The shark's skin is a grayish color, and its fins and tail are clearly visible. The fish are smaller in size compared to the shark, and their bodies are elongated with a silver color. The video captures the natural behavior of these marine animals in their habitat.