Where do the seas come from? How did marine creatures evolve? We’re in the front row when scientists solve these and many more mysteries about the past, present and future of the world’s oceans. The program advances new theories about the origin of the oceans and reveals the profound effects that ocean life will have on our own species in the future. By combining natural history, history and science, and through a judicious use of CGI, the film sketches a never-before-seen picture of the oceans.