The year 2524. After the short-lived Third World War in the year 2024, the world faced a new enemy called the Deathless, mysterious beings that increase in number and adopt new battle tactics after being killed. For hundreds of years, humanity waged a war of attrition against the Deathless, eventually exhausting every nation’s natural resource. With no means to continue fighting, each country surrendered to the Deathless and the United Nations collapsed, dividing the world into three governing factions – the One Ring of Asia, the Free States of America, and the Atlantic Alliance. With mankind on its knees, peace has become elusive in a world now called “Outer Heaven”.
Amid the chaos is Enzo Dameron, a deserter haunted by the memory of his family and friends being wiped out by the Deathless. After a chance to get his family out of the United Kingdom goes awry, he wishes for power to oppose the Deathless, but the power he's given comes at a great cost.