This films reveals the extraordinary variety of life found in the vast blue expanses of te open ocean. Here, all the action takes place in a 10 metre deep band of water, just under the surface. Many species use this section of water to migrate and hunt while others use ingenious ways to stay hidden where there appears to be no shelter. From the surface, the huge blue expanses of the open ocean appear to be devoid of all life. Popular belief is that most sea life congregates around mainline coasts, islands or rocky outcrops. But that perception is far from the truth. This 4K film,shot in the Atlantic, reveals the extraordinary diversity of species who call the open ocean their home and the tactics they use to survive in the watery wilderness.