Johnny Worricker is a long-serving MI5 officer. His boss and best friend Benedict Baron dies suddenly, leaving behind him an inexplicable file, threatening the stability of the organization. Meanwhile, a seemingly chance encounter with Johnny's striking next-door neighbor and political activist Nancy Pierpan seems too good to be true. Johnny is forced to walk out of his job, and then out of his identity to find out the truth.

Eve is reeling from Villanelle's disappearance, and has no idea if the woman she stabbed is alive or dead, but now both of them are in deep trouble. Eve has to find Villanelle before someone else does, but unfortunately, she's not the only person looking for her.

When convicted child killer Oswald Danes miraculously survives his own execution, the footage holds America transfixed. And then everyone realizes that nobody is dying. People keep aging--they get hurt and sick--but they never die. The result: a population boom, overnight. It's a race against time as CIA agent Rex Matheson investigates a secret British institution named Torchwood that seems to hold the answers.