The relationship between man and the sea has always been an exploitative one. This long-lasting ruling is starting to show its bad face through the destabilization of the ecosystems, as well as through the lessening of the fishing stocks which inevitably leads to the desertification of the sea. An initiative of an independent self-funded group of students based on the School of Biology of Aristotle University of Thessaloniki triggered a journey in known and unknown inshore regions of Greece with the target of creating a documentary. The purpose of this documentary is to sensitize the public about the grave issue of the extreme exploitation of the sea through documents and testimonies from amateur and professional fishermen, scientists and experts on the domain of fishery. Many doors opened for this documentary, the doors of Universities, ports, fish auctions, boats, as well as homes in various regions of Greece and stories and knowledge was spread. Research centers like the Hellenic Centre of Marine Research and The Institute of Fishing Research as well as scientists of international range like Reiner Froese and Daniel Pauli which were interviewed about this serious matter of overfishing and the phenomenon of fishing down were two of the main narrative pillars of the documentary. The sea from the antiquity has been a symbol of freedom for man and at the same time a broad field that no one ever sowed but everyone seeks to harvest. If this relation breaks, the future of our relationship with life is almost predestined. The ancient word Thalatta - the title of the documentary - carries semantic weight, synonym of freedom.