Clone Wars Chapter 25 " Chapter 25 " is the twenty - fifth and final episode of the " " animated television series , and the fifth and final episode in and , leading directly into the events of " " . The episode originally aired on Cartoon Network on March 25 , 2005 . Plot summary . Yoda and Mace Windu continue to cut a swath through the invading droid army on Coruscant . They begin to wonder why such a massive invasion has not attempted to attack the Jedi Temple or the Galactic Senate , and realize that the invasion is a distraction from the Confederacy ' s real target — Palpatine . Windu jumps aboard an overflying Republic gunship , and orders the pilot to turn around . Palpatine and his three Jedi protectors reach a hover capsule in a tunnel , and Shaak Ti orders the others to get to the bunker while she holds off their pursuers . She ignites her lightsaber as a group of MagnaGuards troop out of the darkness . On Nelvaan , Anakin Skywalker tries to fight off the Nelvaan mutant s without hurting them . The latest subject manages to burst free of his restraints , smashes the tank and rips the cybernetic chestplates off two of the Nelvannians . Skywalker soon gets the idea and cuts the rest off using his lightsaber . The half - mutated Nelvaan points to a crystal in the middle of the energy chamber which is causing the damage to the planet . As Shaak Ti fights the MagnaGuards , she is deprived of her lightsaber and nearly overwhelmed . But she manages to turn the tables by obtaining an electrostaff and destroy several of them with her new weapon . She then manages to reclaim her lightsaber and masterfully wields it in conjunction with the electrostaff . The Nelvaan warriors are rampaging through the facility , tearing battle droids apart with their bare hands , and freeing their comrades from captivity . Skywalker leaps to the top of the generator , then lowers himself into the crystal chamber . Screaming in agony , he reaches his prosthetic arm into the energy sphere , uses the Force to pull the crystal from its socket , and then shatters it into a thousand shards . The energy surge causes the generator to explode , and Skywalker leaps to safety , his arm destroyed . The Nelvaan warriors reach the planet ' s surface , where the waiting battle droids are destroyed as the planet ' s ice age comes to an end . An enraged Skywalker clambers to the surface , where he kills the Techno Union scientists trying to flee in their ship . Seeing Skywalker ' s ravaged arm , the Nelvaan mutants worship him as " holt kezed " — " ghost hand " — their savior , and in solidarity they tear the implanted weapons from their own arms . Skywalker and the Nelvaanians return to the village . The women are at first horrified by the mutants , but when a child recognizes her father , the familial bonds are restored . On Coruscant , Foul Moudama and Roron Corobb manage to get Palpatine into his secure bunker . Once they are locked inside , they discover that General Grievous has beaten them to it , and the two Jedi leap forward to defend their leader , who sinks , seemingly unconcerned by the danger , into the shadows . As the Moudama and Corobb manage to get Grievous in a saber - lock , his arms split along their lengths into four . His extra two arms then grab the remaining two lightsabers on his waist , and Grievous lunges forward . Shaak Ti continues to fight off Grievous ' s MagnaGuards , but when the droids suddenly retreat , she realizes they ' ve been keeping her busy while Grievous reaches the others . As she races to the bunker , Grievous finishes off the other two Jedi , before turning to and threatening Palpatine . Palpatine calmly replies that Grievous wouldn ' t dare hurt him , for fear of his master ' s wrath . Grievous venomously replies that Palpatine is lucky he ' s wanted alive . Just then , Shaak Ti arrives . Horrified to see the bodies of her comrades , she charges Grievous . Grievous easily grabs the exhausted Jedi by the throat , relieves her of her lightsaber , and activates snaking cables from his wrist , announcing he has other plans for her . The droids on Grievous ' s ship open fire on the gunship with Mace Windu on board . As the vessel falls from the sky , Windu jumps to safety . Grievous turns to face him , igniting four lightsabers , but Windu uses the Force to crush the chest plates protecting the General ' s organs . Grievous turns and flees on board , coughing furiously . Windu tries to leap after the ascending ship , but the vessel ' s blaster barrage forces him to defend himself , thus robbing him of the power behind the leap , and the ship blasts into space . He rushes into the bunker to find the two dead Jedi , with Shaak Ti trussed and tied to the ceiling , devastated by her failure to protect the Chancellor . R2 - D2 is helping Skywalker repair his arm , when an urgent message is received from Mace Windu on Coruscant . As Skywalker orders the cruiser into hyperspace , the Battle of Coruscant continues to rage around the ecumenopolis …