Duel of the Droids " Duel of the Droids " is the seventh episode of of the television series " " . It is the seventh episode of the series overall . Official description . " Anakin , Ahsoka and replacement droid R3 - S6 embark on a dual rescue / sabotage mission when they discover R2 - D2 is being held at General Grievous ' secret enemy listening post . " Plot summary . Artoo manages to transmit the location of Grievous ' listening post on a Ruusan moon , which the " Twilight " picks up . Though advised by Obi - Wan to wait for reinforcements , Anakin heads a rescue mission to save Artoo before his secrets fall into Separatist hands , as well as plant a bomb . Gha Nachkt accesses Artoo ' s memory bank and finds that the little droid contains every Republic strategy . He demands more money but Grievous decides to give it to him by stabbing him in his back with his lightsaber . When the team arrives at the station , Anakin separates from Ahsoka and the clones , heading out alone to find Artoo . Unbeknownst to them , R3 - S6 is actually a spy for the Separatists , and alerts General Grievous to their presence . Tano and the clones infiltrated the reactor control room , but they had to confront and eliminate the security battle droids . After that , Grievous orders his IG - 100 MagnaGuard s to take Artoo to the ship . Meanwhile , Anakin has succeeded in finding R2 - D2 , and duels Grievous ' MagnaGuards . Once they are defeated , he and Artoo order everyone to rendezvous in the south hangar . Unfortunately , Ahsoka does not hear them , as Grievous has engaged her and her clones . The general kills all clones but Rex and Denal . Ahsoka defends herself against Grievous ' s blows and retreats to a room filled with spare droid parts . She hides from the general , but R3 gives her away . Grievous destroys her comlink , and she manages to escape through a vent . As Anakin and the clones , who have succeeded in planting the bombs , meet the " Twilight " in the hangar , R3 ' s treachery is revealed when he traps them and activates several droids to fight them , as Anakin ' s suspicion on the golden droid ' s true allegiance is true . Anakin orders Artoo to open the doors . Ahsoka rejoins the team , who defeats the Vulture droids and escapes in the " Twilight " , detonating the bombs . Grievous escapes the station in his ship , " Soulless One " . Anakin leaves in his starfighter to pick up Artoo . Meanwhile , Artoo manages to open the hangar doors , but R3 moves to intercept him , and the two droids face each other in combat . Artoo pushes his Separatist counterpart over the edge , but R3 grabs him with a suction cup . Artoo succeeds in cutting the cable , and R3 - S6 is sent flying into the air , and he is destroyed by flying debris . Artoo is then rescued by Anakin . As they leave the system , Anakin contacts Obi - Wan . While they succeeded , Obi - Wan disapproves of Anakin ' s choice to risk the mission and all their lives to save a droid . While Ahsoka is happy they got R2 back , she agrees with Obi - Wan . But Anakin says R2 is more than a droid : he is a friend . Decoded . The " Decoded " version of the episode reveals that Gha Nackht was a level 5 droid programmer , that R3 - S6 was captured by Grievous ' s agents and reprogrammed on the planet Milagro , and that clone trooper Denal served with Rex on Geonosis . Behind the scenes . In the original broadcast version , there is a scene where after Ahsoka says to Anakin , " I hope you find Artoo in one piece . " , in which Anakin replies " Get going , Snips . " , after which Ahsoka says to Rex and the rest of the clone troopers , " Looks like it ' s up to us to complete the mission , as usual . " and walk off as the scene fades out to the commercials . The scene , however , was cut from the of and goes right to the scene where Gha Nachkt ripping R2 - D2 apart to plunder Republic info for General Grievous after the commercials . Continuity . An IG - 100 MagnaGuard is decapitated and does not continue fighting . Grievous ' s hand is fixed when he leaves in his starfighter after being cut off ( probably because the same scene was also used in " Destroy Malevolence " , but reversed ) . Anakin encounters MagnaGuards , despite later having commented on how he had only read about them in the of " Revenge of the Sith " . When R2 - D2 is on the table , his eye socket is seen attached momentarily when it shouldn ' t have been . When Grievous grabs Ahsoka , her teeth are shown . However , her canines do not appear to look like the enlarged canines Togruta were known for .