1-04: Babel

Kira’s loyalties are tested when a Bajoran fanatic works to rid Bajor of the Federation. Meanwhile, the Klingon Duras sisters visit DS9.

A hunted individual arrives on Deep Space Nine.

A fast-spreading illness causes an aphasia throughout the station.

The station's personnel exhibit unusual behavior as Kira organizes a coup against Sisko.

A murder plot unfolds when the two leading candidates for Kai arrive on DS9.