Battle in the Brell Sediment laboratory In 3643 BBY , during the Sith Lord Darth Angral ' s campaign of vengeance against the Galactic Republic for the death of his son , Tarnis , a battle occurred in one of the brilliant Doctor Nasan Godera ' s laboratories on the planet Taris . A young Jedi Knight attacked the Imperial soldier s occupying the facility in an effort to locate Godera and extract him from Taris , but an elaborate ploy by Watcher One of Imperial Intelligence allowed the Imperial operative to escape with Godera while the Knight battled the remaining Imperials . While Watcher One ferried Godera away to his base , his operatives tried to deceive the Jedi into believing that Godera was dead , but Godera ' s droid assistant RE - M0 proved otherwise . Their ruse exposed , the Imperials attacked the Jedi Knight , and , after the battle , Watcher One made a deal with the victorious Jedi to secure time to interrogate Godera for his scientific knowledge . Prelude . In 3643 BBY , during the Cold War between the Sith Empire and the Galactic Republic , the Sith Lord Darth Angral declared a personal war on the Republic for the death of his son , Tarnis , at the hands of a young Jedi Knight . Seizing control of a number of Republic superweapons , Angral also dispatched Watcher One , an operative of Imperial Intelligence , to the planet Taris to capture Doctor Nasan Godera , a Republic scientist who had gone into exile there . When Watcher One learned that the same Jedi Knight who had killed Tarnis had arrived on the planet in search of Godera , he was forced to accelerate his efforts : using the equipment at one of Godera ' s laboratories , Watcher One tracked the doctor ' s bioscan to another lab in the region known as the Brell Sediment . Watcher One then destroyed the facility ' s computer to prevent the Knight from doing the same , and he left a group of Imperial soldier s behind as he departed for the Brell Sediment to capture Godera . The battle . A contingent of troops under Watcher One ' s command attacked the laboratory in the Brell Sediment , securing the facility , and they captured Godera in the facility ' s main chamber and knocked him unconscious . At the same time , the Jedi — with the help of Godera ' s droid assistant RE - M0 — repaired the first lab ' s computer and tracking relay s , allowing the Knight and a companion to locate Godera at the Brell Sediment lab . Watcher One was preparing to extract the scientist and return to his base when he was alerted to the impending arrival of the Jedi , so he set up a trap : an Imperial Shadow Captain , donning a holoprojector to appear as Watcher One , and a squad of stealth Shadow Commandos waited in the main lab with a corpse that was disguised as Godera . Captain Gerrard ' s forces secured the rest of the facility while Watcher One donned a holoprojector that disguised him as a Rodian . Watcher One and an unconscious Godera met the Knight at the facility ' s entrance , where the operative — posing as " Kulaa " — claimed that he and the other man were two of Godera ' s assistants . Stating that his fellow assistant had been injured in the Imperial attack on the facility , Watcher One deceived the Knight into letting him leave with the unconscious scientist . The Knight and a companion , meanwhile , headed deeper into the facility and fought through the Imperial soldiers within to reach the main chamber . However , the Knight was dismayed to find " Doctor Godera " lying dead at the feet of two Imperial commandos and " Watcher One , " who claimed that the scientist had killed himself rather than face interrogation . " Watcher One " offered a cessation of hostilities and promised to leave Taris , but his conversation with the Knight was interrupted by the arrival of RE - M0 : The droid had run a second trace on Godera ' s location not long after the Knight had left for the Brell Sediment lab , and his trace had confirmed that Godera was still alive and elsewhere . The ruse exposed , the Shadow Captain cursed and shot RE - M0 with his blaster pistol before he deactivated the holoprojector , and his commandos opened fire on the Knight . In the resultant fight , the Jedi and the Knight ' s companion emerged victorious , and Watcher One — who had reached his base in the ruins of an old transport station — contacted the Jedi via the facility ' s communications terminal . Aftermath . Explaining the deception , the operative forestalled any response by the Knight by informing the Jedi of a more pressing threat : a Sith assassin was on her way to eliminate a nearby Republic colony . In exchange for time to interrogate the scientist , Watcher One gave the Knight the location of the colony , and the Jedi was able to stop the assassin from killing the colonists . The Knight then tracked down Watcher One and rescued Godera , but the operative was able to interrogate the scientist on his knowledge of superweapon technology and send his intelligence to Darth Angral . Behind the scenes . The battle in the Brell Sediment facility first appeared in the Jedi Knight - class mission " Catching Up With Watcher One " in " " , a video game released by BioWare in 2011 . The mission ends with Watcher One making a deal for time with the player , which depends on the player ' s alignment . Light - side players are told about the assassin , while dark - side players are informed about a deal for Jedi artifacts that is being conducted between a Sith and pirates nearby . Players can also ignore Watcher One ' s offer for opposite alignment points , but as the Jedi Knight is a light - side player , the Knight is assumed to have rescued the colonists .