Thom dies in World War II and enters a godless afterlife where souls are clouds upon a golden ocean around the Earth.
He blames himself for ending his family name. He doesn't know why he never married because he's buried it too deep: Thom is gay.
To help him, Thom's dad reaches out from inside a soul well-a monster made of captured souls. But all Thom sees is his father apologizing for something while dying in World War I. Determined to rescue his father, Thom teaches himself how to fight the soul wells with weaponized memories.
Others want Thom to stop the soul wells before they unleash Earth's Armageddon and consume all souls, living and dead. But Thom just wants to atone for ending his family name.