Star Trek: Deep Space Nine: Season 4, Episode 9 - ProjectFreeTV

4 - 9: The Sword of Kahless

Klingon Dahar Master Kor, Jadzia Dax, and Worf search a remote planet in the Gamma Quadrant for the fabled Sword of Kahless; the mythical, millennia-old weapon of the Klingon Empire's first leader.