During a furious battle the Sea Shepherds stop the whalers from hunting.

Plans are laid for the most dangerous mission in Sea Shepherds' history.

Captain Pete boards a whaling ship and tries to arrest the captain.

Captain Peter shares his thoughts after four months in Japanese custody.

The Sea Shepherds depart on campaign with a new vessel in their fleet, The Gojira. Early on, they find two of the harpoon ships in the whaling fleet before they've killed a single whale. They are now set up for their most successful campaign ever.

After engaging the harpoon ships using the small boat teams, Paul makes the call to abandon the harpoon ships and go in search of the factory vessel. After a few hours of sailing, the tables have turned - two harpoon ships begin tailing Sea Shepherd.

Tailed by a harpoon ship, the Steve Irwin enlists the help of the Gojira in an attempt to break free. Meanwhile, the Bob Barker crew spots a large blip on their radar, and believe it could be their ultimate target, the Nisshin Maru.

When damage happens to one of the small boats, and the Bob Barker is five hours away, the crews realize they will have to spend a night at sea. But the crew is wet and freezing already and early symptoms of hypothermia begin to set in.

The Bob Barker desperately searches for their two small boat crews who were stranded at sea following a daring mission. Meanwhile, the Gojira locates the whalers' refueling vessel and Locky plays a dangerous game of "chicken" with the massive ship.

New Zealand's Navy contacts the Steve Irwin to respond to an emergency distress signal where five crew members from a Norwegian sailboat have gone missing. The Sea Shepherds must risk their lives in a dangerous mission to find the missing mariners.

As the first leg of their campaign comes to a close, the Sea Shepherds battle physical and mental exhaustion, especially pilot Chris Aultman. Thanks to an anonymous tip, the Steve Irwin finally locates the whalers' factory ship, the Nisshin Maru.

The Bob Barker and Gojira launch an ambitious assault on the harpoon ship that has been following them and manage to completely disable the whaling vessel. Now free of its tail, the Barker continues searching for the Nisshin Maru.

After months of grueling searching, the Sea Shepherd's have found their ultimate target, the whaler's factory vessel. But the behemoth factory ship is intent on escaping from the carbon-fiber Gojira in the deadly Antarctic ice.

Captain Paul Watson's crew of volunteers refuses to back down from the whalers, vowing to follow the fleet to the ends of the earth. Finally, after 30 years, Watson sees his life's work paid off with the ultimate victory.

The Sea Shepherds prepare to intercept the Japanese fleet.

Captain Watson's plan to intercept the whalers nears a critical point.