A year has passed since the Hell Divers defeated the machines at Kilimanjaro. The freed captives have settled into their new home at the Vanguard Islands, joining survivors from around the world. But extreme weather and failed crops have raised the specter of famine. Ships must push deeper into dangerous red zones, only to come back with less loot — and fewer soldiers.
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While the Hell Divers cross an ocean to battle the machines, an old flesh-and-blood threat returns to the islands.