Desolator crisis Near the end of the Cold War between the Galactic Republic and the Sith Empire , a military crisis erupted in 3643 BBY when the Sith Lord Darth Angral waged a personal war of vengeance upon the Republic and the Jedi Order in order to gain vengeance for the death of his son Tarnis at the hands of a a young Jedi Knight . After Tarnis ' s attempt to use the Republic superweapon known as the Planet Prison against the Republic ' s capital planet of Coruscant failed , his father put Tarnis ' s final gift — information on the rest of the Republic superweapon initiative — to use and dispatched his three Sith apprentices , Lords Praven , Sadic , and Nefarid , to take control of the Republic ' s weapons facilities on Tatooine , Nar Shaddaa , and Alderaan . While the Empire publicly disavowed Angral ' s actions , they secretly lent him support , supplying his apprentices with support from the Imperial Military and dispatching the Imperial spymaster Watcher One to capture the Republic scientist Nasan Godera on the planet Taris . Unable to authorize a military response , General Var Suthra sent the Jedi Knight who killed Tarnis on missions across the galaxy with the astromech droid T7 - O1 and the Padawan Kira Carsen to halt Angral ' s plans . After gathering information on the planet Ord Mantell , the Knight rescued Doctor Godera from Watcher One on Taris , but Agent Galen of the Republic Strategic Information Service — the Republic ' s intelligence agency — was captured and converted into an unwilling slave by Sadic using the Power Guard supersoldier project on Nar Shaddaa . However , the Knight and Galen were able to defeat Sadic and destroy the Power Guard project , preventing Angral ' s apprentice from creating an army of mind - controlled supersoldiers from the refugees on the moon . The Sith Emperor himself intervened in the conflict in an attempt to recover Carsen ; the Sith ruler sent Valis — a Child of the Emperor , an extension of the Emperor ' s own will — to lure out and capture Carsen , but the Knight and the former Child defeated the Sith . Angral ' s other apprentices were also successful in capturing their assigned weapons projects , with Praven defeating the Jedi Master Bela Kiwiiks who was sent to guard the Shock Drum on Tatooine and Nefarid trapping Master Orgus Din in a ruined laboratory after stealing the Death Mark laser . However , Praven was disgusted by his own Master ' s dishonorable actions and was convinced to abandon the Sith by the Knight , and the Jedi was able to rescue Kiwiiks from near - death and destroy the Shock Drum before it tore Tatooine apart . The mission to Alderaan was hampered by the interference of an Imperial spy named Aleyna Hark , but the Knight and crew managed to prevent the assassination of the Alderaanian noble Horis Thul — an action that also saved the budding peace negotiations that were working towards ending Alderaan ' s brutal civil war . But though the Jedi defeated Angral ' s apprentice Nefarid and destroyed the Death Mark , Orgus Din ' s attempt to infiltrate Angral ' s warship " Oppressor " and confront his old enemy ended in the Jedi Master ' s death . The crisis reached its height when Angral , having constructed a superweapon known as the Desolator by combining the Republic ' s weapon technologies , tested his new weapon on the Republic agriworld of Uphrades . The attack , which devastated Uphrades ' s surface and killed millions , was also intended to draw out Tarnis ' s killer , and Angral set up a confrontation by attacking the Jedi Order ' s homeworld of Tython . While the Desolator recharged , the Knight and Carsen boarded the " Oppressor " and disabled the superweapon before confronting Angral on the bridge of his warship . The resultant battle saw the death of Darth Angral and the destruction of the " Oppressor " , signalling the end of the Desolator weapon and the current crisis , but Angral ' s war was one of several factors that led to the dissolution of the Treaty of Coruscant and the resumption of war in the months that followed . Prelude . The crisis involving the Desolator superweapon centered around two powerful Force - users and their apprentices : Jedi Master Orgus Din and the Sith Lord Darth Angral . The two humans were bound by a rivalry that stretched back to the last days of the Great Galactic War between the Galactic Republic and the Sith Empire , where the pair fought before the Senate Building during the Sacking of Coruscant in 3653 BBY . When the Treaty of Coruscant ended the twenty - eight - year conflict and forced the galaxy into a tense Cold War , Angral was furious at the lost advantage over the Republic , and his anger only grew over the next decade . Orgus Din and the Jedi Order , meanwhile , retreated to their recently rediscovered homeworld of Tython in the Deep Core and began to slowly rebuild their strength . Over the next ten years , Angral trained two further apprentices , Nefarid and Sadic , to the status of Sith Lord , while his former student Praven trained Angral ' s own son Tarnis in the ways of the dark side . Din ' s apprentice Bengel Morr had been present during the destruction of the Jedi Temple on Coruscant during the Sacking , and was presumed dead — however , Morr had in fact survived , going insane and turning to the dark side and would marshal the native Flesh Raider s of Tython against the Jedi Order in the weeks leading up to the Desolator crisis . Morr and his forces were defeated , however , with the help of Din ' s new apprentice , whom the Jedi Master met after witnessing the learner defeat Morr ' s own apprentice Callef with only a vibrosword . Feeling that the Force had drawn them together , Din decided to take on the young Jedi as his Padawan , and the two investigated the recent activity on Tython . After the apprentice rescued Din from Morr and defeated the Dark Jedi in a duel , the Padawan was granted the rank of Jedi Knight and sent to the Republic capital of Coruscant to aid Jedi Master Bela Kiwiiks and her Padawan Kira Carsen investigate a dark presence that the Jedi High Council had sensed there . That dark presence , which Kiwiiks was able to confirm upon her arrival on Coruscant during the war with the Flesh Raiders , was actually Angral ' s son Tarnis , deep undercover as a Republic scientist named Eli Tarnis . Under this alias , Tarnis had joined the Republic superweapon initiative , the Republic ' s weapons division , several years earlier and quickly became the head of the development team for the Planet Prison superweapon . The Planet Prison , a device that ionized a planet ' s atmosphere in order to blockade enemy worlds without excessive naval force , was one of several weapons projects started by the Mon Calamari general Var Suthra in the aftermath of the Sacking of Coruscant . Suthra , who had witnessed the destruction of the Jedi Temple , founded the projects in honor of the Jedi who had fallen during the defense of their home as a way to end the next war with minimal loss of life . The crisis . Early battles . The Planet Prison . The Planet Prison prototype became ready for field tests in 3643 BBY , but Tarnis felt that his position was threatened when Kiwiiks detected traces of his presence in the Force . Worried that further investigation would reveal his true identity , Tarnis contacted the Black Sun criminal syndicate and introduced himself as a Sith Lord . In exchange for advanced Imperial weapons and armor , Black Sun agreed to aid Tarnis in his plans to escape Coruscant . A Rodian thief named Vistis Garn who often worked for Black Sun ' s rival , the Migrant Merchants ' Guild , was hired to use the Guild to steal the design files for the Planet Prison , and he raided a warehouse belonging to the Republic Military with a team of Guild personnel . While stealing a large number of weapons and munitions for the Guild , Garn employed the team ' s slicer to hack into the warehouse ' s computer systems and steal the design files for the Planet Prison and the Republic ' s other superweapon projects . However , Garn ' s face was glimpsed by a security camera , and the Republic Strategic Information Service — the Republic ' s intelligence agency — was able to identify the Rodian from the security footage almost thirty - two hours later . Around that time , Orgus Din ' s former apprentice arrived on Coruscant and reported to Conference Room 2 - Aurek in the Senate Building , where Masters Kiwiiks and Din were discussing the stolen Planet Prison files with General Suthra , Doctor Tarnis , and Kiwiiks ' Padawan Carsen . Not long after the recently - Knighted Jedi arrived at the Senate Building with the astromech droid T7 - O1 , also known as Teeseven , the SIS Agent Galen — the head of the SIS branch located in the Senate Building — interrupted the meeting to report the break in the case . General Suthra and the Jedi Masters departed for a meeting with Supreme Chancellor Dorian Janarus , leaving Galen to work with the Knight , Carsen , and Teeseven on retrieving the files . Galen ' s subordinates were able to track Garn ' s team to a warehouse in the Guild - controlled Old Galactic Market region , and Galen dispatched the Knight and Teeseven to retrieve the stolen files and weapons . Making their way to the warehouse , the pair raided the warehouse , but by that time Garn had used the Guild ' s slicer to decrypt the files and send a copy to Black Sun . At the same time , Tarnis contacted Salarr , the leader of Black Sun , and set the next stage of his escape plan into action : Tarnis transmitted inside information on the security of the Senate Building to Black Sun , allowing a team led by a man named Zeer to infiltrate the building , incapacitate the Republic Military personnel and Coruscant Security officers guarding the doctor , and make it out with Tarnis undetected . Agent Galen and the SIS discovered Tarnis ' s absence just minutes before the Knight contacted him to report the successful recovery of the stolen weapons and files , and Kira Carsen set off with a CSF team in pursuit of the kidnappers as they fled across the Senate Plaza . Some of the kidnappers , including Tarnis , split off from the others at the Plaza ' s taxi pad , traveling to Black Sun territory , while Zeer led the rest into the Coruscant Spaceport as a distraction . Though Tarnis himself diverted from the Black Sun members to make his way to the sector under the control of his allies in the Imperial - friendly Justicars ' Brigade Zeer ' s men barricaded themselves in Docking Bay 84 and became embroiled in a firefight with Carsen and the CSF officers . Not long afterwards , the Knight and Teeseven returned to the Senate Building and delivered the files to Agent Galen , who handed them off to Krand and his other analysts before sending the Jedi to reinforce Carsen . With Carsen ' s use of a stealth field generator , the two Jedi and Teeseven were able to break the criminals ' lines and capture Zeer , and the Padawan tricked Zeer into revealing where Tarnis had actually been taken by pretending to read his mind . However , during the fight in the spaceport , the SIS discovered that the stolen files had included information on the entire Republic superweapon initiative , putting the offworld weapons facilities at risk of discovery . As a result , Din , Kiwiiks , and Galen each departed Coruscant to secure one of the offworld facilities , traveling to Alderaan , Tatooine , and Nar Shaddaa respectively . The Knight and Teeseven , meanwhile , traveled to Black Sun territory in pursuit of the kidnapped doctor , where Sergeant Nidaljo and his CSF Special tactical unit had been driven back into a nearby apartment building after their attempt to gather information on Black Sun ' s headquarters in expectation of the Jedi ' s arrival . After breaking the Black Sun siege of Nidaljo ' s men , the Knight was able to inspire the disheartened sergeant to continue the mission , and the Jedi and Teeseven launched an assault on the Black Sun base ' s front entrance while the CSF officers attacked the rear entrance . The Knight and Teeseven reached the building ' s command center before the CSF officers , only to find Salarr communicating with a hologram of a hooded Tarnis . Revealed to be a Sith Lord , Tarnis ordered Salarr to kill the Jedi before terminating the transmission , but the arrival of Nidaljo and his men saved the Knight from one of the criminals ' attempt to sneak up on the Jedi . The police officers and the Knight fought Salarr and his men and killed the gang leader , dealing a significant blow to Black Sun , but the Jedi and Teeseven returned to the Senate Building to discuss what to do about Tarnis ' s betrayal . After ending the communication with Salarr , Tarnis contacted the Planet Prison design team in the persona of Eli Tarnis and urged his subordinates to bring him the weapon prototype in the Justicars ' Sector , claiming that the Jedi were trying to shut down the project . The team believed their leader and departed with the prototype before General Suthra was alerted to Tarnis ' s true identity , and the general was furious to discover their apparent treason . Having tracked Tarnis ' s signal to the Justicars ' Tower in the Justicars ' Sector , Suthra dispatched the Knight to locate Tarnis , and Carsen accompanied her fellow Jedi instead of Teeseven in case they were forced to battle the Sith . While the two Jedi were fighting their way through the hostile Justicars to reach the center , however , the Planet Prison design team met with Tarnis . Revealing himself as a Sith Lord , he murdered four of the five scientists with Force lightning before departing with the prototype , though the fifth scientist — a man named Jonkan — was only mortally wounded . Jonkan survived long enough to see Carsen and the Knight ' s arrival , and with his dying breaths he told the two Jedi that they could locate the Planet Prison by its immense heat signature . Tarnis had in fact taken the Planet Prison to the ruins of the Jedi Temple , and a thermal scan of the surrounding regions alerted his Jedi pursuers to his location . Making their way through the industrial zone known as The Works and fighting through the Imperial soldiers who were present in the ruins of the Temple , the two Jedi located Tarnis and the Planet Prison , only to interrupt a holocommunication he was making with his father and Angral ' s three apprentices . Urged on by Darth Angral , Tarnis dueled Carsen and the Knight before a hologram of his father , Praven , Nefarid , and Sadic , and Angral was horrified to see his son struck down by the Knight ' s blade . Furious , Angral declared undying hatred for the Jedi and promised to use the Republic ' s own weapons to kill billions . Carsen and the Knight were able to deactivate the Planet Prison before it fired , however , and the two returned to the Senate Building to report success to General Suthra . Meanwhile , Angral — making use of the files on the Republic superweapons sent to him as a final gift from his son — dispatched his apprentices to take control of each of the Republic ' s offworld facilities . Praven was sent to secure the Shock Drum weapon on Tatooine , Sadic to capture the Power Guard supersoldier project on Nar Shaddaa , and Nefarid to seize the Death Mark laser on Alderaan . Angral also secured the aid of the Imperial Military and Imperial Intelligence , despite the Empire ' s public disavowment of Angral ' s actions , and sent complements of Imperial soldiers to support his apprentices . Watcher One , an experienced agent of Imperial Intelligence , was sent to the planet Taris in order to locate Doctor Nasan Godera , the scientist responsible for designing the technologies that the Republic superweapon initiative were weaponizing . Ord Mantell . Upon returning to the Senate Building , the Knight and Carsen discussed the situation with General Suthra and the Jedi Order ' s Grand Master Satele Shan , who was in holoconference from Tython . Suthra had already consulted the Galactic Senate on the matter of Angral , who was flooding all available comm channels with threats vowing revenge , but the Senate refused to authorize a military response on account of the Empire ' s declaration that Angral had gone rogue . However , the SIS had been able to track Angral ' s transmission as far as Ord Mantell , prompting General Suthra to send the Knight there to uncover the source of the transmission . Agreeing , the Grand Master appointed Carsen as the Knight ' s own Padawan in the absence of Master Kiwiiks , and Suthra had a " Defender " - class light corvette delivered to the Coruscant Spaceport for the Knight . Taking their new ship , the two Jedi and Teeseven traveled to Ord Mantell and docked at the Ord Mantell Orbital Station before contacting General Suthra . After the Knight ' s departure , Suthra contacted the SIS agent on Ord Mantell , a man named Ottau , and ordered him to perform reconnaissance of the recently detected Imperial base on a small island to the north of the larger island Avilatan . Ottau was able to determine the base ' s outer defenses before his probe droids were destroyed , and he returned to the Republic Military ' s base of Fort Garnik to await the Jedi ' s arrival . On Suthra ' s advice , the Knight took Teeseven along so that the droid could slice into the Imperial base ' s computer systems , and the two left Carsen behind to guard the ship while they rendezvoused with Agent Ottau . Following Ottau ' s directions , the pair fought through the Imperial defenders and descended into the subterranean complex , and after defeating the final Imperial — a lieutenant named Marcovic — the Knight stood watch while Teeseven sliced into the listening post ' s systems and retrieved records of the files and transmissions sent to Angral from Tarnis . However , while the Knight and Teeseven were on Ord Mantell ' s surface , Carsen was identified by operatives of Imperial Intelligence aboard the space station , and the Imperials alerted Darth Angral . The Sith Lord and his retainers traveled almost twenty parsecs to capture and interrogate Carsen as to her Master ' s whereabouts , though Carsen was able to trick Angral into believing that the Knight was on Corellia . Angral departed the station with Admiral Hacklin and his other retainers to follow up on her information , though he left behind the Sith Inquisitor Ferav to keep her hostage in case she was lying with express orders not to kill her . Upon returning to Agent Ottau , who began organizing a team to take control of the now defenseless Imperial base , the Knight and Teeseven returned to their ship , only to find Ferav as well as several Imperial soldiers and Sith acolytes holding Carsen hostage . However , Ferav and his reinforcements were unable to defeat Teeseven and the Jedi , and pair contacted General Suthra with their success after the fighting . Aftermath . The events of the crisis were highly classified in Republic files — the name of the Hero of Tython was redacted from the personnel files of those involved in the campaign , as were the names of the planets where the Republic ' s superweapon projects were located . Notable participants . Jedi Order . Hero of Tython . The Jedi Knight that would become known as the Hero of Tython was the student of Jedi Master Orgus Din . Kira Carsen . The human female apprentice of Jedi Master Bela Kiwiiks , Kira Carsen was originally a Child of the Sith Emperor until she fled Sith Space as a child . Carsen lived among refugees on Nar Shaddaa until she was discovered by Kiwiiks , who took her back to the Order as her student . During the early days of the crisis , she worked closely with the Republic Strategic Information Service to aid the former apprentice of Orgus Din in tracking down the Planet Prison superweapon . After the Jedi Knight and Carsen defeated the Sith Lord Tarnis in the ruins of the Jedi Temple , she became the older Jedi ' s apprentice as her own journeyed to Tatooine in an attempt to secure the Shock Drum weapon . Together with the Knight and T7 - O1 , Carsen fought the forces of Darth Angral on several worlds in order to destroy the captured Republic superweapons , and her past as a Child was revealed to her master when the Emperor sent a fellow Child named Valis to recover her . After his defeat , Carsen agreed to tell the Jedi Council about her past , and the trust her teacher placed in the young Padawan continued to serve in the Order . In the final weeks of the crisis , Carsen helped rescue her former master Kiwiiks on Tatooine , and faced Darth Angral aboard the " Oppressor " in a final duel . However , she was possessed by the Sith Emperor during the fight , and was forced to fight her own master until she successfully purged herself of the Emperor ' s mental control . For her actions during the crisis , she was elevated to the rank of Jedi Knight by the Council , and continued to serve alongside the Knight and T7 during the Galactic War . T7 - O1 . A T7 - series astromech droid with a long and storied history , T7 - O1 served the Jedi Order as a reconnaissance droid on Tython after his former partner , Jedi Master Ven Zallow , was killed by the Sith Lord Darth Malgus during the fall of the Jedi Temple . Galactic Republic . Var Suthra . A male Mon Calamari veteran of the Great Galactic War , Var Suthra served in the Republic Military during the Sacking of Coruscant and witnessed the devastation of the Jedi Temple from afar . In an attempt to honor the Jedi who were killed during the attack , Suthra started a series of superweapon projects in an attempt to end the next war with minimal casualties . Galen . An agent of the Strategic Information Service , Galen was stationed on the capital during the Cold War . By the time of the beginning of the crisis , Galen had risen to head the SIS unit based in the Senate Tower , and he reported directly to General Var Suthra . When the Planet Prison files went missing , Galen ' s unit handled the investigation , and Galen worked directly with the Knight to recover the stolen data . After the Jedi discovered that the Republic ' s weapon facilities were no longer secure , Galen agreed to investigate the Power Guard Project on Nar Shaddaa while Jedi Masters Din and Kiwiiks traveled to Alderaan and Tatooine . However , Galen walked into a trap — he was captured by the forces of Lord Sadic and subjected to the Power Guard procedures , placing the now - cybernetically - enhanced SIS agent under Sadic ' s command . When the Knight arrived to locate Galen , Sadic used the agent in his attempts to stop the young Jedi , but the Knight helped Galen overcome his conditioning when the Jedi refused to kill him . In a vain attempt to end his life with purpose , Galen attacked Sadic ' s lab alone and was defeated by the Power Guards under the Siths ' control . Fortunately , Galen survived and later worked with the SIS to control his implants , going deep undercover in Imperial territory . Nasan Godera . A human male scientist who worked for the Galactic Republic during the Great Galactic War , Doctor Nasan Godera was widely considered a genius in the field of advanced military technology . A staunch opponent of the Empire , Godera was furious when the Republic submitted to the Treaty of Coruscant , and resigned in protest before secretly retiring to the ruined world of Taris . There , the scientist built a series of laboratories manned by droid assistants , and continued his work over the next decade until he was swept up in the Desolator crisis . The SIS had long suspected that Godera was present on Taris , and Angral acted upon this information in the files sent to him by his son and sent Imperial Intelligence to capture the scientist . Sith Empire . Tarnis . The son of Darth Angral , Tarnis failed at his attempt to complete his father ' s work of destroying the Republic , but his death served as the catalyst for Angral to declare war on the Republic . Trained by Angral ' s own apprentice Praven , Tarnis went undercover as a Republic scientist named Eli Tarnis to infiltrate the Republic superweapon initiative and rose to become the head of the Planet Prison project by 3643 BBY . Watcher One . The man known as Watcher One was a shadowy member of Imperial Intelligence , long at the top of the SIS ' most wanted . A master spy with years of experience , Watcher One surprisingly remained a man of principles despite his work with the Sith Empire , and served the Empire out of honor and and a sense of duty more than any true loyalty to the government ' s ideals . When Darth Angral assigned him to Taris to retrieve Doctor Godera , the operative suspected that the Jedi Knight who had killed Tarnis would also attempt to locate the scientist , and prepared for the eventuality . Praven . A Sith Pureblood member of a long - standing family in the Sith Empire , Lord Praven was one of Darth Angral ' s three apprentices during the Great Galactic War and the Cold War . One of the fifty Sith who stormed the Jedi Temple under the command of Darth Malgus and Lord Adraas during the Sacking of Coruscant , Praven defeated Jedi Master Usma in combat . He later taught Angral ' s son Tarnis as a Sith , completing the man ' s training by the end of the Cold War . During the crisis after Tarnis ' death , Angral sent Praven to Tatooine to secure the Shock Drum superweapon . On that desert world , Praven successfully wrested control of the device with minimal casualties , as his staunch values of honor and loyalty caused him to view senseless killing of innocents with disdain . When he encountered the Jedi Master Bela Kiwiiks , who was also in search of the weapon , he subdued her and complied with Angral ' s orders to leave her to die with the activated Shock Drum , despite his regret . Paven ' s honor drove him to challenge the Knight to a duel for the Shock Drum ' s codes , but the Jedi was able to convince the Sith Lord to become a Jedi after defeating Praven in their duel . Nefarid . A diminutive , cruel human , the man known as Nefarid was trained as a Sith Lord by Darth Angral during the decade following the Treaty of Coruscant . Behind the scenes . The Desolator crisis appears in " " , a released by BioWare and LucasArts on December 20 , 2011 . It serves as the in - universe events of the story presented in the Prologue and Act I of the Jedi Knight storyline , and as such is subject to certain elements of game mechanics .