Missing in Action " Missing in Action " is the twelfth episode of the , the hundredth episode overall of the series . It aired on January 5 , 2013 . Official description . " " In a nearly vacant town , R2 - D2 and his team find a clone commando suffering from amnesia . " " Plot summary . D - Squad has arrived in the seedy town of Pons Ora . Colonel Gascon and WAC - 47 enter a diner for some refreshment while the astromechs perform reconnaissance around town to look for hostiles . But upon announcing themselves , Gascon and WAC are rudely shooed out by the diner ' s cook , Borkus . WAC takes Gascon to the side of the diner where a swarm of bugs are scurrying towards the garbage . Though disgusted at the thought of eating leftovers , Gascon sees no alternative . But before he can take a bite , a Human dish washer named Gregor steps out of the diner to throw out the garbage , accidentally hitting Gascon . Apologizing for his mistake , Gregor offers to give him some food on the side . However , Gascon stares at Gregor and identifies him as a clone trooper . Gregor apparently has no idea what a clone is and is forced to return to work . Gascon and WAC then rendezvous with the astromechs , who confirm the presence of Separatists on Abafar . After his shift is done , Gregor asks Borkus what a clone is . The Sullustan vaguely says clones fight in a galactic war and tells Gregor to forget about it , reminding him that it was he who found him . Though Gregor still appreciates his help , he asks how he arrived on Abafar . Borkus avoids the question , and tells Gregor to go home and never mention the word , " clone " again . Meanwhile , D - Squad finds a heavily guarded landing field . Though Gascon insists they discreetly make their way to the shuttle , the droids point out that the Separatists may be on the lookout for them after their adventure on the dreadnaught . As it ' d be a suicide for a head on attack , Gascon decides to enlist Gregor ' s help . D - Squad locates Gregor ' s apartment and get his attention as R2 projects a hologram of Captain Rex . They explain to him his true origins as a clone , meant to fight for the Republic . Gregor is hesitant to believe them , saying he ' s lucky that Borkus is paying off his rent . Gascon corrects that he ' s Borkus ' slave . As Gregor has amnesia , Gascon has R2 ID Gregor off his identification code on his wrist , revealing Gregor to be a clone commando . He had been presumed missing in action in the Battle of Sarrish , one of the Republic ' s most devastating military defeats . Recalling vague memories of the battle , Gregor agrees to assist D - Squad . They then go searching for his equipment , unaware that Borkus is watching them . They go to Borkus ' diner , only for the Sullustan to come to them , revealing he has Gregor ' s gear . Gregor demands to know why he withheld the truth from him . Borkus said he didn ' t care and reminds Gregor owes him a life debt . The clone retorts that he made him a slave and demands his gear . Borkus gets the drop on Gregor but the droids tie him up . As D - Squad prepares to leave , Borkus pleads Gregor not to leave but he refuses . Borkus then reveals that the Separatists plan on blowing up a Republic cruiser in orbit with the rhydonium fuel they mined . He says that they ' ll never escape and will be begging him for a job . D - Squad returns to the landing zone , confirming that Borkus was telling the truth . D - Squad unanimously agree to save the cruiser . Gregor provides cover fire for Gascon and the droids as they make their way to the shuttle . However , the battle droids spot D - Squad and open fire on them . A stray shot hits a Rhydonium canister , knocking down BZ and Gascon inside him . The Colonel tells WAC to leave him , an order that the pit droid quickly complies with . However , Gregor comes back for him and stays behind to cover their escape . Though Gascon and R2 insists they can save him , Gregor promises he will return home . As the Separatists surround him , Gregor shoots nearby canisters , causing massive explosions . As their shuttle departs Abafar , Gascon promises that Gregor ' s sacrifice will not be forgotten and they will watch for his return . Continuity . " Missing in Action " was originally reported by " Star Wars Insider " 137 as the eleventh episode of Season Five , but the reported order was revised following the magazine ' s publication . The opening logo for the episode , traditionally yellow , was rendered blue to salute R2 - D2 . The other three episodes of this arc , " Secret Weapons , " " A Sunny Day in the Void , " and " Point of No Return , " also feature this blue opening logo . However , it is not the first time the logo changes color . In last two episodes ( " Brothers " and " Revenge " ) , the logo was painted red , on the reason of the return of Darth Maul .