Citadel Rescue " Citadel Rescue " is the twentieth episode of the ' . It aired on March 11 , 2011 . Official description . " " After their ship and only way off the planet is destroyed , Anakin and Obi - Wan must lead the escaped prisoner s across Lola Sayu ' s perilous landscape as Plo Koon commands a task force of four cruiser s and their fighters through the Separatist defenses in a daring rescue . Even Piell is ravaged by anooba tracking beasts , but before he dies , he passes on his Nexus Route s coordinates to Ahsoka . When the survivors return to Coruscant , Ahsoka knows half the intel , and refuses to disclose it to anyone but the Jedi Council , while Tarkin refuses to hand over his half to anyone other than the Chancellor . " " Plot summary . After finding a temporary refuge in the cave s , Even Piell and R2 - D2 contact the Jedi High Council . They learn that Master Plo Koon — aided by Kit Fisto , Saesee Tiin and Adi Gallia — is already on his way to retrieve them , but that there is only a small window of opportunity in which the rescue party can get to them ; the rendezvous point is a small island situated in a lava lake surrounded by a mountain ring . Right after the call was made , a squad of commando droids attacks them , forcing them to move on . In the meantime , Osi Sobeck is contacted by Count Dooku and reprimanded for his failure to recapture the prisoners so far , though Dooku decides to give him another chance until success or failure are a certainty . Afraid to displease the Count even more , Sobeck unleashes a pack of Anooba to hunt the Jedi down and has the space blockade around the planet bolstered to prevent another intrusion . The Jedi team reaches the lake , but are attacked by a large battle droid force . While R2 ' s droid team holds off the enemy for as long as they are able ( and are swiftly destroyed in the attempt ) , the Jedi , clones and Tarkin descend the cliff down to the lake ' s shore and flee into a set of gulleys . As they move on , Skywalker , Tano and Kenobi discuss Tarkin ' s haughty attitude and the Jedi ' s inability to stem the tide of war due to their strict codex before they notice the Anooba trailing them , along with a squad of STAPs . Skywalker , Kenobi and R2 lure the creatures into an ambush , but the rest of the team itself is ambushed by crab droids and another group of STAPs . Separated from the others , Piell and Tano are attacked by the last remaining Anooba which fatally mauls the Jedi Master . Dying , Piell entrusts Tano with his half of the Nexus Route coordinates , despite her confession that she was never assigned to the mission , with the explicit instruction to repeat it to none other but the Jedi Council , and the Jedi take a brief moment to consign his body to the lava before moving on . Finally , Sobeck arrives on the scene , determined to see his efforts succeed personally , and catches the refugees just as they prepare to cross over to the island . His STAP is shot down by Fives , lands on the island , grapples with Tarkin and prepares to cast him into the lava , but Tano kills him before he could do that . Just before an army of crab droids can overrun the island , Master Koon arrives with a gunship to carry the fugitives out , and once safely aboard a " Venator " - class Star Destroyer , the rescue force retreats immediately . Though the mission was successful , the situation takes an abrupt turn back on Coruscant : Tarkin states that he can deliver his part of the information only to Chancellor Palpatine himself , while Tano holds true to her promise to Master Piell to reveal her half only to the Jedi Council , so Master Yoda is forced to confer with Palpatine about this matter . Upon Skywalker ' s inquiry , Master Koon covers Tano ' s claim that he had permitted her to join the mission , and Tarkin clasps Skywalker ' s hand , commending him on his standing - points — as a lauding Obi - Wan observes quite critically . Behind the scenes . Even Piell ' s death in the episode greatly contradicts his later chronological death in " " in 19 BBY . On March 11 , 2011 , Leland Chee stated on his StarWars . com blog that he was killed in the novel because of potential continuity issues regarding his council membership . However , after the " " trilogy was completed , it turned out that Citadel Rescue would rewrite his death , and they attempted to minimize the number of sources that contradicted this . This contradiction was removed when the Coruscant Nights trilogy was put into the Legends continuity in 2014 . At the scene about a few seconds after Plo ' s gunship launches , there are two naval clone officers alive . This is incorrect because three naval officers have clearly died , which brings the officer total to five . On the episode " The Citadel " when Anakin rescues the officers , there are only four of them in the prison cell . During one of the combat scenes , Commander Cody jumps on top of a crab droid and shoots it in the head before turning around to shoot at other approaching droids . This directly mirrors what other clones did on Utapau in . R2 - D2 ' s squad of three battle droids is misleading because in the previous episode when the clone and a droid peered over the edge , one of the droids was shot and destroyed . Yet in this episode all three droids were present . For a brief moment when the team was going into the gunship , Ahsoka ' s lightsaber was blue . This was also the third least watched episode of the series with only 1 . 54 million views . As Tarkin clasps Anakin ' s hand in the final scene , the Imperial March can be heard playing in the background .