A mission was undertaken to the Pleknok system by various families of the Chiss Ascendancy who hoped to hunt down thieves who had stolen parts of a dangerous alien weapon known as Starflash. The thieves took the weapon part to the Pleknok system, where Paataatus forces attacked both their stolen freighter and the Chiss combat vessels Orisson and Jandalin. The mission was deemed a personal failing by captain Clarr'os'culry "Roscu" of the Clarr family, who had failed to retrieve the cargo as ordered by Patriarch Clarr'ivl'exow "Rivlex." The mission occurred by 19 BBY.
The mission to Pleknok appeared in flashbacks in the 2021 novel Thrawn Ascendancy: Lesser Evil, the final installment of Timothy Zahn's Star Wars: The Ascendancy Trilogy.
The mission to Pleknok appeared in flashbacks in the 2021 novel Thrawn Ascendancy: Lesser Evil, the final installment of Timothy Zahn's Star Wars: The Ascendancy Trilogy.