The universe isn't just ending—it is being unwritten. An ancient entity known as the Eater is consuming reality, erasing victims so completely that the memory of their existence vanishes with them.
An old man wakes in the shattered ruins of London with no memory, no name, and only the burning wreckage of a blue police box behind him. Pulled into the dark of the London Underground by Aimee, a history teacher turned soldier, he discovers the last four hundred survivors holding a desperate barricade.
But humanity isn't fighting this war alone. Driven back by absolute erasure, Daleks, Cybermen, and Ice Warriors have broken their oldest hatreds to stand shoulder-to-shoulder with their prey.
As the nameless man slowly recovers fragments of his two-thousand-year-old past, he realizes the horrifying truth: he is the legendary Doctor, and his legacy of saving people is the exact trail of hope that lured the Eater here.