Episode Title:Those with Shipping Routes.Episode Description:In the near future, mankind has been driven away from the seas and landmasses are forcibly isolated from each other with the arrival of the "Fleet of Fog"; AI controlled ships possessing superior technology and firepower. Despite the combined efforts of the UN, the Fleet of Fog manage to destroy all opposition and throw the world into a state of turmoil. Years later, the Japanese Government is preparing to send an unmanned cargo shuttle into orbit. The Fleet of Fog ship Nagara appears and attempts to assault the launch site. The launch is a success when the human-crewed Fog submarine I-401 defeats the enemy at request of the government. After the battle, I-401's captain Gunzō Chihaya reminisces with the vessel's mental model, a human avatar called Iona, about their first meeting two years ago. It was during this time that I-401 was under human custody for years, unresponsive until Gunzō came in contact with it, awakening Iona. After Iona reveals that she had instructions to serve under him, Gunzō agrees to join forces with her and they flee together. In the present, Gunzō is approached by Ryūjirō Kamikage, the Assistant Secretary of Military Affairs, who reveals that the shuttle was destroyed before accomplishing its task; deliver the plans of a new weapon developed to fight the ships of the Fog to the United States as Japan now lacks the resources required to mass produce it. Accepting the task of crossing the Pacific Ocean to take the plans to the US by themselves, Gunzō and his crew depart to resupply at Yokosuka Base. Meanwhile, taking heed of I-401's approach, the Fog's heavy cruiser Takao prepares herself to engage it.