Description: Kadomatsu and Kusaka arrange for a tanker loaded with fuel and provisions to rendezvous with the Mirai. However, Lt. Tsuda is suspicious and begins investigating. After being informed of the fisherman's discovery of a hidden Japanese warship in Anambas, he realizes that his encounter with Kusaka, mysterious purchases of fuel and foodstuffs on the black market, the unexplained "special mission" involving the tanker, and his mission regarding the mystery ship are all connected. As such Tsuda has the tanker's crew replaced with his own men and confronts Kusaka after the ship sets sail.