The Steve Irwin remains to coordinate the operation. All four of the fleet's main ships feature a new captain, with Watson serving as an observer. Former captain of the Steve Irwin, Paul Watson, is forced to step down due to an injunction preventing him from coming within 500 yards of Japanese whaling fleet. The fleet introduces a new ship, the Sam Simon.

The Sea Shepherds face a difficult 2013 campaign with the Brigitte Bardot and their helicopter unavailable. The Steve Irwin returns to Melbourne again before running out of fuel.

As Watson concluded that the second leg of the mission was successful, the Sea Shepherds claimed that they have saved about 500 whales. Watson fishes a metallic fragment from his vest and claims to have been shot. When the two ships meet the second time, the Steve Irwin crew strikes first again while the Nisshin Maru crew, in return, threatens to use tear gas grenades and throws flash bombs. The Japanese whalers claim that three of their crewmembers were injured by the stink bombs. A pod of whales swims between the two 'warring' ships, which eventually engage in a ship-to-ship 'battle.' The captain of the Nisshin Maru warned on a recorded message sent multiple times through a horn that 'If you dare board this vessel, you will be taken into custody.' Recruited Sea Shepherds are the first to strike, throwing stink bombs with Butyric acid onto the decks of the Nisshin Maru, which dwarfed the Steve Irwin in size, while its crew watches and films the Steve Irwin. After power was restored to part of the ship, the MV Steve Irwin finally finds, follows, and comes face to face two times with the Japanese whaling factory ship Nisshin Maru, which Watson considers the 'most evil' vessel in international waters.

Sea Wars Online for apple instal free