The Last Reef: Cities Beneath the Sea 4k hdr is a documentary story about ocean life. The filmmakers compare life in the sea & ocean depths with life in a big city. The oceanic inhabitants are also chosen from hiding places and get their food. Fish and other creatures grow and protect their own offspring, just like humans. Reef dwellers are wondrous fish and earth-water creatures. There are even those that can only be seen with a microscope. The man's eye is unable to detect these creatures because of their very small size, or their ability to disguise themselves. Just as in the human world, in the water realm there are predators and those creatures that are their victims. There are shoals of fish that are sure to find the leading fish. The creators of this story convey an important message to viewers. The message is that we are all temporary guests on this great planet called Earth! This documentary is so delightfully received with HDR10 and Dolby Atmos sound that after downloading, you will be watching it again and again!