Captain Sisko and the crew of the U.S.S. Theseus team up with Starfleet Operative Kingsnake—a.k.a. HARRY KIM—to stop the war-loving Tzenkethi from launching their fleet across the Quadrant. Unfortunately for Starfleet, however, the Tzenkethi leader has a surprise guest of his own who will stop at nothing to thwart Starfleet’s plans. Meanwhile, when the crew is greeted by continuous—and frightening—earthquakes, Dr. Crusher realizes there is more going on with the planet than they may be able to survive…