National Geographic Society
National GeographicNat Geo Wild

  • Premieres Saturday March 7th at 10:30 pm, 9:30pm BKK/JKT
  • Nat Geo Wild


One Ocean is an ambitious, provocative and stunning four-part documentary series that portrays the ocean more completely than ever before, revealing its awesome beauty and extraordinary power. The series explores how the planet's ocean, which covers 70% of the planet, holds the very key to all life within its silent and shadowy depths. In each breathtaking episode we bring to life a vast, interconnected ecosystem: from the diversity and significance of microscopic plankton, to the sleek power of the Ocean's top predators.


  • One Ocean: Birth of The Ocean
    Birth of an Ocean (aka A Sea of Change) In "The Birth of an Ocean", episode one of the four part series "One Ocean", we travel back to ancient times, telling the story of the ocean's turbulent beginnings and its successive incarnations. It's a journey that introduces the enormity of the ocean over space and time - at four billion years old the ocean is nearly as old as the planet itself. In a remote part of Western Australia, we venture to the stunning, crystal blue waters that harbour the descendants of the first life on earth. These formations once covered the ancient seabed, and today they give scientists a remarkable window back in time. Traveling forward, we discover that almost 99.9% of species that ever lived on this planet are now extinct. On the lush and diverse Osprey Reef, we swim alongside scientists to learn why one remarkable creature - the nautilus - has survived, for millions of years, what countless other species could not. In "The Birth of an Ocean" we trace our own profound connections to the ocean with Tiktaalik, the "fish-a-pod" that scientists believe is the missing link between the ocean and all limbed creatures, including us. One Ocean captures a fragile, interconnected world that knows only one constant: change. It is a world that we could not exist without.
  • One Ocean: Changing Sea
    In our final episode, of the series One Ocean - The Changing Sea, we discover that the ocean is sending us clear signals. Off the rugged and beautiful coast of British Columbia we meet scientists and fishermen who are shocked at the recent arrival of a voracious new creature - the Humboldt squid. This monster-sized squid native to Mexico has moved north and ushered in a cascade of changes to the ecosystem. Their arrival is part of a disturbing pattern that is emerging with species movement being tracked around the world. In The Changing Sea we illustrate how the ocean's chemistry and systems are being compromised by increased acidity, less oxygen and warming temperatures. The changes to the timeless rhythms of birth and renewal are being felt everywhere - even on coral reefs. In the idyllic waters of the Bay of Naples, we get a glimpse of our future ocean, thanks to the mythic Mount Vesuvius. As scientists swim through lush green seagrass beds, they collect creatures whose shells are dissolving, and we discover that this amazing place has a terrible secret. It has been naturally acidified for millennia - could this be our ocean's future?
  • One Ocean: Coastal Threats
    Coastal Threats (aka Footprints in the Sand) In episode two of "One Ocean", "Coastal Threats", we take measure of humanity's impact on the sea since we first settled along its coasts. We travel to the Mediterranean Sea with local Spanish fishermen in search of the magnificent bluefin tuna, one of the most prized fish in the ocean. The Mediterranean is also one of the most overfished seas in the world. As fishermen try to maintain their centuries-old method of fishing, conservation scientists are desperate to find hard evidence to support their side in the heated debate over fishing quotas. Human activity through history - overfishing, over-development of the world's coastlines, and the continuing pollution that we pour into the sea - have had unexpected consequences. But as "Coastal Threats" reveals, marine protected areas can have a huge impact on an ecosystem's ability to recover. Zanzibar is a place where the people have always depended on fish for their survival. There, locals are finding ways to live in balance with the ocean by using more sustainable approaches to their harvests and also by creating a sense of communal ownership and stewardship. In New Zealand, we discover that ocean areas which are now protected have experienced an extraordinary turn-around - where once sea urchins had taken over and destroyed the reefs and kelp forests, top predators have returned and the stunning reef has been restored to its full glory. "One Ocean" captures a fragile, interconnected world that knows only one constant: change. It is a world that we could not exist without.
  • One Ocean: Deep Mysteries
    Episode Three of the series One Ocean reveals the Deep Mysteries of our vast oceans and takes us to the most beguiling parts of the sea, the very depths that we know so little about. As we improve our technological prowess, we are venturing deeper and deeper into the planet's last frontier. What scientists are discovering is beyond our wildest imaginings. We join a team of scientists on an international expedition as they return to the Mariana Arc on the Pacific Rim of Fire. As their submersible ROV plumbs the depths of the ocean, the thrill and excitement of peering into these extreme environments is palpable. Each day they make new discoveries about the outlandish deep-sea dwellers they find here. But at the same time that we begin to unravel their mysteries we're also mining the sea of many species. Finally Deep Mysteries asks the question: can cutting-edge technologies allow us to truly experience, for the first time, the three-dimensional world of the deep ocean?