We follow a pair of Humpback Whales – a mother and her calf – on their great migration from the warm tropics to the frozen ice flows of Antarctica, via an Ocean Current that is home to thousands of interconnected species.
As we cross multiple eco-systems, it becomes evident that the ocean itsself is the blue heart of our entire planet, necessary for life as we know it both in the sea and on land. Our journey takes us from the smallest microscopic organisms to the largest animals ever to have inhabited the planet to understand how their fragile interdependence is crucial to maintaining the oceans health but also our weather systems on land, and the make up of our atmosphere.