The Big Bang " The Big Bang " is an unfinished episode of the animated television series " " . The episode was released on StarWars . com as a story reel on September 25 , 2014 , as part of " The Clone Wars " Legacy . Despite being incomplete , as the series was cancelled before the episode could be finished , it is still considered official " Star Wars " canon . Official description . " Obi - Wan and Anakin must do all they can to prevent a powerful weapon from falling into General Grievous ' hands . " Plot summary . On their stolen starship , the Jedi Master Obi - Wan Kenobi contacts the Jedi High Council on Coruscant to warn them about the kyber crystal falling into the hands of General Grievous . Ahead , a Separatist fleet orbits Utapau . Grand Master Yoda orders Kenobi and Anakin Skywalker to prevent the Separatists from getting their hands on the crystal . Meanwhile , the two battle droid s piloting a Neimoidian shuttle attempt to draw their Jedi pursuers towards the Separatist fleet in the hope that they will be destroyed . The Jedis ' stolen starship dodges fire from the Separatist warships . During the chase , Anakin reminds Kenobi that he is professional when his former master cautions him about the approaching Separatist fighters . Grievous pursues the fleeing Jedi in his starfighter and also dispatches Vulture droids to harry the Jedi . During the dogfight , Kenobi manages to shoot their Vulture droid pursuers with the ship ' s laser cannon s , causing one to crash into the bridge of a nearby " Munificent " - class star frigate . The Separatist shuttle transporting the kyber crystal docks in Hangar Bay One of a massive Separatist supply ship . Kenobi decides that they should follow the crystal aboard and orders Anakin to set the ship ' s autopilot to land on the ship . The two Jedi escape their vessel in escape pod s but get separated and land in different hangar bays . In Hangar Bay One , Kenobi fights with battle droids but is cornered by General Grievous and several Vulture droids and droideka s . Kenobi engages the cyborg general in a lightsaber duel but is defeated and taken captive . The battle droids restrain Kenobi in a platform and lock him in a cell . Meanwhile , in a control room , one battle droid reports with Kenobi ' s lightsaber to his commander , who warns him that another Jedi is still on the run and orders him to make a second sweep . Anakin then resurfaces and destroys all the droids in that room with his lightsaber . After studying a computer , he finds that the kyber crystal is being moved into a vault and that Kenobi has been locked into a cell . Meanwhile , in the command bridge , Grievous informs Count Dooku that he has secured the kyber crystal and captured the Jedi Kenobi . When Dooku asks about Skywalker , Grievous assures him that every effort is being made to hunt him down . Dooku then orders Grievous to execute Kenobi and to deliver the crystal to Serenno ; stressing that he will tolerate no failure . Meanwhile , the battle droids escort Kenobi to an execution chamber . The Jedi manages to distract the droids by reminding them about the Yavin Code , a principle from the Yavin Convention which stated that executed prisoners must be blindfolded . Shortly later , Skywalker reappears and rescues his master while destroying the battle droids . After joking about the Yavin Code , Skywalker hands back Kenobi ' s weapon while reminding him that " the weapon is his life . " At the execution chamber , Grievous learns that the Jedi have escaped . After striking one of his battle droids , he orders them to find the Jedi fugitives . Meanwhile , several battle droids move the kyber crystal into a vault . The two Jedi follow the droids into the vault and hide while the droids exit the chamber . However , the Jedi are then locked behind several armored doors , preventing escape . On the command bridge , Grievous is informed that the Jedi still have not been found . The battle droid commander suggests that they may be hiding in the ventilator shafts . Grievous decided to send a squad to check the vault . Back in the vault , Kenobi tells Anakin to wait for the battle droids to come and meet them . The Jedi then use the kyber crystal to knock down a squad of droids . They are blocked by a second squad but the two Jedi use the stolen crystal to deflect their blasts , incinerating the battle droids . A dwarf spider droid then opens fire on the crystal , causing to deflect its blast . Kenobi and Skywalker hide . On the command bridge , one of the battle droids reports a massive energy surge coming from the vault . Grievous and his IG - 100 MagnaGuard s depart for the vault . The Jedi use the crystal to push their way into the Separatist warship ' s hangar bay . There , they come under attack from several battle droids and droidekas . Unable to bring it back with them to the Republic , the two Jedi decide to destroy the kyber crystal and escape on a stolen shuttle . Kenobi uses several Armored Assault Tank s to open fire on the crystal , causing it to overheat and to trigger a cataclysmic chain reaction that engulfs the entire hangar bay and warship . The ensuing explosion also destroys much of the Separatist fleet above Utapau . The Jedi escape on their stolen Neimoidian shuttle while Grievous flees into hyperspace on his starfighter . Back on Coruscant , Kenobi and Skywalker report their actions to the Jedi Council . Kenobi reasoned that it was better for them to destroy the kyber crystal rather than to let it fall into Separatist hands . Master Yoda then recounts the story of how the ancient Sith had constructed superweapon s using massive kyber crystals to power them up . He fears that the mysterious Sith Lord has similar intentions .