A Changeling spy is hiding out on Earth, and with the new peace with the Dominion in danger, Captain Nado Merenish must drop everything and find them. But what Nado and her team find is no Changeling. Then cities start going missing. First it's only one: Nijny-Novgorod in Russia. A computer glitch, probably; we'll send some cadets from Star Fleet Academy to check it out. Then there are more. Chicago. Edinburgh. Seoul . . . And the "Changeling spy" turns out to be nothing but a lost Suliban who doesn't know anything more than Starfleet does.
With one Alpha-Quadrant city after another disappearing, Captain Nado and her team of lifelong enemies must find and neutralize a temporal weapon before a megalomaniac cult leader erases them from history.