• Television story and Teleplay by: Peter Allan Fields
• Based upon material by Andrea Moore Alton
• Directed by: Winrich Kolbe
• Music by: Dennis McCarthy
• Guest Cast:
  • John Colicos (Kor)
  • William Campbell (Koloth)
  • Michael Ansara (Kang)
  • Bill Bolender (The Albino)
  • Christopher Collins (Albino's Aide)

Stardate not given: Three elderly Klingons whose days of glory passed into history and legend with the conclusion of Federation-Klingon hostilities have arrived at DS9 in search of their old friend Curzon Dax. Decades ago, after the three Klingons led a victorious assault on a ruthless enemy, their first sons were murdered in an act of revenge. The bereaved fathers made a pact, along with their mutual friend Dax, to avenge their sons' deaths. After years of searching, the murderer has been found - and they wonder if Jadzia Dax will still honor an oath of vengeance made by Curzon Dax.

Notes: The principal Klingon guest stars each made their debut appearances in episodes of the original "Star Trek" - John Colicos' Kor appeared as the first Klingon in Trek history in 1967's "Errand of Mercy" William Campbell stirred up "The Trouble With Tribbles" as Koloth later that same year, and Michael Ansara locked horns with Captain Kirk in 1968's "Day of the Dove."