Tainted waters, dying reefs, and failing fisheries - the myth of the boundless ocean is no more. With Earth's burgeoning populace facing an uncertain future on our beleaguered blue planet, never before have the world's oceans been called upon to serve so many, while suffering so much. From the troubled waters now rises a new wave of hope, a blossoming brand of stewardship from those who are doing right by the sea. OCEAN FRONTIERS takes us on an inspiring voyage to seaports and watersheds across the country to meet unlikely allies, of industrial shippers and whale biologists, pig farmers and wetland ecologists, sport fishers and reef snorkelers and many more, all are embarking on a new course of collaboration, in defense of the seas that sustain them.