S1E6 · Feb 21, 2021 · 46 min

In search of medical supplies, Hibiki and the others decide to approach the base by sea; however, while stopping at a small island along the way, they encounter Tsuboi’s group—members of a faction that had previously been hostile toward them. Inside the isolated base, a conflict of opinion arises between Self-Defense Force Commander Kojiro Ushigome, who advocates for withdrawal, and Shuto, who insists on developing the vaccine right there at the base...