Icebergs are the biggest most menacing killers marauding the seas. This is the story of the International Ice Patrol, and others, who protect the shipping, fishing and oil and gas platforms from these floating bullies using any means necessary.
Deep below the surface of the ocean an amazing new generation of tough, powerful underwater machines are hard at work. They carry dream pioneers to the bottom of the sea to repair oil pipelines or even confront some bizarre deep-sea creatures.
For the last 30 years the most radical boat designs have worked to break the rules of speed, often resulting in high speed lethal crashes. With new technologies innovators have built the fastest, most stable boats in the world, from small leisure crafts to giant military, cargo and passenger crafts.
Naval tactics have changed since the days of great battleships. Broadside firefights have been replaced by concealed precision strikes. Since the invention of radar, hiding a ship in open water is difficult, but for many countries, not impossible.
When the script calls for underwater action, filmakers use custom-made cameras, sunken sets, and mechanized monsters. Meet the innovators behind classic films, tour an animatronic aquarium, and learn how digital water is the wave of the future.
Our coastlines and harbors are littered with tens of millions of unexploded shells, mines and even atomic bombs. Finding them is tough, risky work, but for a boatload of American fisherman, searching for a 40-year-old hydrogen bomb is an obsession.