When the TARDIS homes in on the signal of Clara's recently deceased boyfriend, the Doctor and Clara find themselves in the headquarters of 3W, where they are greeted by the sinister Missy and her overly intimate "welcome pack". Purportedly selling the Aflerlife, Missy presides over rows of skeletons seated in glass display cases with their support structures hidden by "dark water" that renders all but organic material invisible.

While the Doctor investigates, Missy taunts him about her scheme and her true identity until the big reveal outside St Paul's Cathedral.