A fanatical group of Cardassians escapes from a Bajoran prison vowing death to all Bajorans. Sisko is informed that a shuttle carrying Gul Dukat and Kira suffered a catastrophic warp core failure and both were killed. Dukat and Kira survive in an escape pod but are captured by the escaped Cardassians, who have devised a plot to destroy DS9, the wormhole, and Bajor. O'Brien and Odo aren't convinced of Kira's death and arrive in to help Dukat and Kira prevent genocide.