Double Agent Droid " Double Agent Droid " is the ninteenth episode of the animated television series " Star Wars Rebels " third season . It is the fifty - sixth episode of the series overall . It aired on March 11 , 2017 , on Disney XD . Official description . " When Chopper comes under Imperial control , the future of the entire Rebellion is at stake . " Plot summary . AP - 5 ' s mission . The episode opens with a " Sentinel " - class landing craft detaching from the Spectres ' starship , the " Ghost " . Wedge Antilles tells Hera Syndulla , Garazeb Orrelios and Ezra Bridger over the com not to worry because they will get the clearance codes " before you know it . " Zeb jokes about Wedge ' s co - pilots being more of a challenge , while Ezra chuckles . Hera tells them to cut the chatter because they have a job to do . Despite Zeb and Ezra ' s thoughts , Hera is confident that she has the best team on the job . Zeb sarcastically asks when their best team consisted of AP - 5 , Chopper , and " Wedge " , and he and Ezra laugh . Meanwhile , Wedge , who is wearing a TIE fighter pilot uniform , asks AP - 5 why Hera picked him for the mission . AP - 5 replies that his grasp of protocol is lacking and that Imperial pilots never remove their helmets while flying . Wedge points out that he learned that in his classes at the Imperial Academy . AP - 5 responds that Wedge mistakes his attention to detail with an attack on his fragile ego . Chopper beeps while Wedge sighs . AP - 5 stresses that he wants the mission to go precisely as planned , and that they need to acquire clearance codes for the planned attack on Lothal . Wedge reminds AP - 5 and Chopper that he was at the meeting too . When Chopper whines , AP - 5 responds that he got his circuits overheated because he was placed in charge . AP - 5 stresses that it is his mission and that Captain Syndulla was specific about this being his operation due to his skill set and experience . When Wedge tells them to argue somewhere else , AP - 5 boasts to Chopper that " Anything you can do , I can do better . " Chopper and AP - 5 continue arguing , and AP - 5 says that he makes a better rebel spy because of his superior programming . Wedge remarks that he now knows why nobody else volunteered for the mission . Undercover droids . The " Sentinel " exits hyperspace and flies towards Killun 71 . The shuttle approaches Killun Station , which is built on the side of a mountain . Wedge tells AP - 5 and Chopper to quit arguing and prepare for the welcoming committee , before pulling on his helmet . When the flight controller tells them they are in a restricted sector and requests their identity , Wedge tells them that he is 836 - VS delivering service droids and transmits the clearance code B6279 . AP - 5 remarks that Antilles was not very convincing , but Wedge ignores his criticism . The flight controller clears their ship for landing at the Imperial Security Bureau base . AP - 5 and Chopper disembark while still arguing . They arrive at a scanner manned by two stormtrooper s . One of the stormtroopers states they have to proceed one at a time , and AP - 5 huffily responds that he is aware of the protocol before proceeding . He is cleared by the scanner . After Chopper passes through , the scanner doesn ' t flash green , and eventually beeps as the lights flash red , although the stormtrooper guards don ' t notice . While entering the base , AP - 5 reminds Chopper to follow his lead , sparking another round of arguments . Meanwhile in space , the Imperial Information Office crew of an Imperial IGV - 55 surveillance vessel receive the sensor ' s transmission . The communications officer 3 - 9 informs the Imperial Controller LT - 319 that an unauthorized droid has entered the ISB base on Killun 71 . The controller thinks that this may be the spy droid they ' ve been looking for , and orders his crew to set a course for Killun 71 . Back at the ISB base , Chopper argues with a mouse droid , and AP - 5 tells him to shut up , as they were fortunate to pass through security . The two droids come across an astromech port in the hallway . When Chopper beeps in Binary , AP - 5 responds that these terminals connect to the central computer , but that the most current codes will not be accessible there . He reminds Chopper that this info was why he was put in charge of the operation . Chopper disagrees , but AP - 5 insists that he makes better calculations than Chopper . When Chopper protests , AP - 5 insists on retrieving the codes alone . In space , the " Gozanti " cruiser approaches Killun 71 . When a female comm officer asks 3 - 9 where the data scan update is , he responds that he is tracking 7161 . An image of the rebel " Sentinel " craft at Killun 71 appears on the data screen . The communications officer confirms that the droid that triggered the alarm arrived on that shuttle . The controller checks archival data on unidentified rebel droids and recognizes Chopper as an outdated C1 - series astromech droid . He believes that Chopper is the droid infiltrator that Grand Admiral Thrawn had referenced in his report on Phoenix Cell . 3 - 9 wants to inform Killun Station , but the controller insists on informing the ISB only after he has what he needs from the spy . Rival operations . Back on Killun 71 , AP - 5 admires the simplicity of Imperial structure and organization . AP - 5 finds the central computer core , but is confronted by a female RA - 7 protocol droid called PZ - 7 . When PZ - 7 expresses surprise that two inventory units were assigned to this level , AP - 5 informs her that PZ - 7 has been reassigned to the cargo platform and that he is her replacement . PZ - 7 meekly accepts AP - 5 ' s explanation , leading him to marvel that he is of the same model as those Imperial drones . AP - 5 boasts of using his intellect to his advantage as he inserts his data disk into the network terminal . He manages to download the clearance codes for Lothal within seconds , and boasts about handling the mission by himself . Meanwhile , 3 - 9 reports to the controller that Chopper is trying to access the network terminal . The controller is pleased , because he thinks that he can extract the location of the rebel base from Chopper ' s memory . He orders 3 - 9 to capture the droid . As Chopper accesses the terminal , a spark of electricity convulses his chassis . The controller boasts that Admiral Thrawn will be pleased . When 3 - 9 reports that no base coordinates were stored on the droid , the controller decides to use Chopper to lead them to the base instead . He tells 3 - 9 to initiate the takeover . The controller remarks that Chopper ' s resistance to reprogramming is impressive , but ultimately futile . 3 - 9 reports that the takeover is complete . Back at Killun Base , AP - 5 finds an unresponsive Chopper and dismisses him as " all talk and no action . " He taunts Chopper that he stole the codes while he was waiting . Unbeknownst to AP - 5 , the Imperials are watching him through Chopper ' s visual processor . When Chopper does not respond , AP - 5 accuses him of sulking and challenges him to race back to the shuttle . The female comm officer informs the controller that the inventory droid has accessed the Lothal orbital access codes from the main computer , and warns that there is danger . However , the controller responds that the rebels only have a 31 % chance of using the codes . He decides to let the rebel droids escape in order to learn the location of the rebel base , surmising that the odds are in their favor . An awkward journey . AP - 5 climbs aboard the ramp of the " Sentinel " shuttle and tells Wedge that he has successfully obtained the clearance codes and that they must leave at once . When Wedge asks about Chopper , the astromech rolls up the ramp . AP - 5 remarks that it is about time , and Chopper beeps an apology in Binary . Chopper then admits that AP - 5 is the better leader . Wedge , relieved by Chopper ' s polite behavior , thinks it will be a smooth flight back to base . When AP - 5 asks Chopper what he is up to , Chopper talks back in Imperial Code 16 , leading AP - 5 to deduce that he is on standby mode . The controller uses the visual processor to monitor Chopper and AP - 5 . AP - 5 is suspicious because Chopper has never been on standby mode before . During the journey , AP - 5 tells Chopper that Code 16 is an Imperial code . When the reprogrammed Chopper insists that he is speaking his language , AP - 5 responds that he only uses Code 16 when necessary and accuses Chopper of questioning his loyalty . Wedge calls the droid back to the cockpit . AP - 5 tells Chopper he is watching him while the controller watches . In the cockpit , Wedge converses with Hera via hologram . Hera is pleased that everything went according to plan . When Wedge gives credit to the droids , AP - 5 replies that he did all the work . Hera thanks the team and then asks Wedge how long it ' ll be before they reach their rendezvous point . Wedge replies that they ' ll be there within the hour . He then asks AP - 5 what is the matter with him . Chopper then offers Wedge a carton of blue milk . When Wedge notices the change in Chopper ' s attitude , AP - 5 suspects that Chopper is being insincere , but Wedge welcomes the change . AP - 5 protests when Wedge suggests that he needs a change in attitude . The Imperial controller watches the conversation and identifies AP - 5 as a threat to his plan . When Chopper addresses AP - 5 as " sir " , the protocol droid thinks that he wants to take possession of the data disk . After Wedge tells Chopper to check the hyperdrive coils to ease the drag , he then tells AP - 5 to end his childish competition with Chopper . AP - 5 warns Wedge that he suspects that Chopper may have been compromised on Killun 71 . Wedge thinks that he is being paranoid and insists nothing is wrong with Chopper . When Chopper returns , Wedge tells him to take over the controls while he uses the refresher . AP - 5 follows Lieutenant Antilles into the refresher and insists on talking in private . He warns Wedge that he saw Chopper being plugged into a network terminal , and recalls his suspicions about Chopper ' s silent mode and the use of an Imperial term . Wedge doesn ' t want to listen to conspiracy theories , as he " really " needs to use the refresher , and kicks AP - 5 out of the toilet . Chopper spies on the argument while hanging upside down . The controller surmises that everything is on track because the inventory droid has undermined his own credibility . He thinks it is a matter of time before Chopper leads them to Phoenix Cell and their rebel base . Trouble aboard the " Ghost " . The " Sentinel " docks with the " Ghost " while Ezra and Zeb play a game of dejarik . Hera meets AP - 5 and Wedge . AP - 5 presents the clearance codes and tells the Spectres he saved the codes from C1 - 10P . Wedge adds that AP - 5 and Chopper were playing some sort of spy game . While Zeb and Ezra laugh , AP - 5 insists that it is not a game and that he has serious concerns about Chopper . While Ezra asks where Chopper is , AP - 5 pleads for his comrades to listen to him . A suspicious Hera asks Chopper where he is and heads to the " Ghost " cockpit . She asks Chopper what he is doing with the hyperspace logs . Chopper responds that he is updating his database . When Hera tells him he is not making any sense , he claims that he had files wiped on Killun 71 . Hera lays down the clearance codes for Lothal on the console . She then reminds Chopper that she wipes his data after every jump as a security precaution , and says he needs a proper recharge . Chopper exits the cockpit abruptly . Back in the common area , Wedge recounts how AP - 5 followed him into the refresher , and Ezra and Zeb laugh . Zeb states that AP - 5 once did the same thing to him . Hera enters the common area to warn the other rebels that she thinks something is wrong with " Chop " . AP - 5 expresses vindication , while Wedge observes that Chopper has been curiously nice to him . Zeb remarks that Chopper being nice isn ' t weird but creepy . Unbeknownst to the other rebels , Chopper is watching them from behind . Ezra suggests that Chopper short - circuited , while Hera recommends running a diagnostic scan . The hijacking . Suddenly , the " Ghost " lists as the ship exits hyperspace abruptly . When Hera demands that Chopper explain why , he beeps back in Binary . Hera tells the rebels that he is in the engine room . When Zeb pounds his hands and says that he ' ll show Chopper what malfunction means , Hera tells him to go easy on Chopper because they don ' t know what is wrong with him yet . When AP - 5 asks whether they should all go , Ezra accuses him of cowardice . The rebels head into the cargo bay , and Chopper seals them inside . AP - 5 and Hera demand that Chopper open the doors . Instead , Chopper locks them in and detaches the " Ghost " from the " Sentinel " shuttle . When AP - 5 remarks that he told them so , Hera puts a reassuring arm around him and tells him they will listen to him next time . Meanwhile , the Imperial - controlled Chopper recovers the stolen clearance codes . 3 - 9 informs the controller , who then orders Chopper to install a data spike onto the " Ghost " navigation computer . The controller remarks that all they need now is a little time and no interference . Back aboard the " Ghost " , the rebels try to force the hatch open in vain . The controller has no need for prisoners and orders Chopper to open the cargo bay hatch doors to space . The Spectres struggle to cling on and avoid being sucked into space . With much difficulty , Hera manages to use an access panel to manually reseal the doors . Watching through Chopper ' s visual processor , the controller thinks that the rebels are a short - term problem because the download is underway . Hera realizes that someone is using Chopper to download the location of Chopper Base . Ezra fears this will be the end of Phoenix Squadron , and asks if there is another way out . Hera says they need to override the hatch control , but that it involves going outside . Since AP - 5 doesn ' t need a space suit , she suggests he do it . AP - 5 is reluctant , but Hera insists that they don ' t have much time . While Chopper downloads the data from the nav computer , AP - 5 climbs onto the hull , but is spotted by Chopper and the controller . The controller vows to end the traitorous inventory droid . While AP - 5 accesses the override circuitry , Chopper , armed with two blaster s , exits the " Ghost " and attacks his friend . AP - 5 shields himself with the hatch . Meanwhile , the data spike has downloaded 50 % of the " Ghost " data . The controller thinks success is imminent and orders his crew to search the archive memory for the location of the rebel base . Chopper does a second loop in space and attacks AP - 5 just as he manages to unseal the cargo bay . Chopper pushes AP - 5 into space and flies back to the " Ghost " , entering the cockpit . Retaking Chopper . Ambushing the hijacked droid from behind , Zeb stun s Chopper with his bo - rifle and remarks that he has wanted to do it for a long time . Ezra removes the data spike , sabotaging the data transfer , and remarks that it looks like the Imperials almost got what they wanted . Hera advocates striking back against the Empire for messing with her droid , and tells Zeb to get him up . Ezra remarks that Hera is angry . Hera states that the culprit must have a strong signal array to control Chopper from such a distance . She decides to reverse the feed on them and send back more data than they expect . After connecting Chopper to the " Ghost " computers , Hera uses the astromech droid ' s visual processor to send a stern message to the Imperial controller , telling him to keep his hands off her droid . As Chopper convulses , 3 - 9 reports that the circuits on their IGV - 55 surveillance vessel are overloading . The female comms officer reports that their fuel cells have been compromised . The controller tells them to shut off the signal , and Hera tells them to say goodbye to their memory core . The data overload causes the surveillance vessel to explode with its crew aboard . Chopper squeals in pain . Hera tends to her droid and pleads with her buddy to come back to her . She places her hands on him . Despite their dislike for Chopper , even Zeb and Ezra express sadness . Suddenly , Chopper begins to reboot . Hera , Ezra , and Zeb are elated to see their friend again , with Zeb remarking that he can ' t believe that he is glad to see Chopper . Wedge reminds them that it was a close call and that they still need to give AP - 5 due credit . Ezra cheers for AP - 5 , but then asks where he is . Rescuing AP - 5 . While floating in space , AP - 5 remarks that he should be frightened but finds himself strangely calm . He embraces the solitude of silence just as he is surrounded by a herd of baby neebray . AP - 5 befriends the creatures and starts to break into a song . His solitude is abruptly interrupted when he is rescued by the " Ghost " , much to his chagrin . The Spectres and Wedge welcome AP - 5 aboard . AP - 5 confronts Chopper , who is apologetic . Chopper ' s apology , however , makes AP - 5 think that Chopper is still compromised . In response , Chopper whacks him and Wedge with his manipulator arms . Wedge remarks that he has had enough of droids and that he is flying solo from now on , as he and AP - 5 chase after Chopper . Hera watches from above and warns not to mess with her droid , only half - joking .