Commander Worf of Deep Space Nine and the aged Klingon warrior known as Kor seldom see eye-to-eye. But they may be forced to put aside their differences when an unknown saboteur preys on the crew of a Klingon ship docked at the space station. The audacious crimes rouse the anger of the Klingons, even as Captain Sisko receives reports of mysterious raids along the disputed Klingon-Cardassian border.
Dispatched on a secret mission to investigate the raids, Worf and the crew of the Defiant find themselves trapped on an alien world threatened by global cataclysm - while Sisko and Odo must keep tensions on Deep Space Nine from erupting into bloody warfare that will forever stain the honor of the Klingon Empire.
The Day of Honor series dramatizes events surrounding the proud tradition of the annual "Day of Honor," a major Klingon holiday of remembrance.