On Qo'noS, a bomb killed several members of the Klingon High Council and seriously injured Gowron, leader of the Klingon Empire. The assassins were all prisoners from the Klingon penal asteroid Rura Penthe. When the freighter Kor-Van was implicated in the conspiracy, fleeing Rura Penthe with the conspirators' assassination team, a member of the elite Klingon Honor Guard was dispatched to track down the ship.
Information gained on Rura Penthe suggested the ship was linked to a small smuggling operation based on Qualor II. After finding and securing the smuggler's base, which contained information on the location of Thress, the Honor Guard infiltrated a space station in the Mendora Nebula where Thress was located, and then boarded the Kor-Van via shuttlecraft.