A dedicated and legendary Jedi Knight, Obi-Wan Kenobi has had a long and tumultuous career that has helped shape the fate of an entire galaxy. When he was 25 standard years old, he was caught up in the important events of the Battle of Naboo. At the time he was a Padawan learner, apprenticed to Jedi Master Qui-Gon Jinn.
At the behest of Supreme Chancellor Valorum, Obi-Wan and his master secretly voyaged to Naboo to negotiate a peaceful settlement to the tense Trade Federation blockade of the planet. Aboard a Trade Federation vessel, the scheming Neimoidians sprung a trap on the Jedi, and attempted to kill them. Kenobi and his master escaped and stowed away on Trade Federation invasion craft landing on Naboo's surface.
Following his master, Obi-Wan voyaged from Naboo to Coruscant and back during the intrigue that surrounded the Battle of Naboo. When Qui-Gon Jinn brought a freed young slave boy, Anakin Skywalker, before the Jedi Council, Obi-Wan was taken aback. Qui-Gon claimed that Anakin was the chosen one of an ancient Jedi prophecy, and that he was to be Jinn's new Padawan learner, replacing Obi-Wan. The council refused Jinn's proposal to train the boy.
This was just one of many disagreements that Obi-Wan Kenobi and Qui-Gon Jinn had during their time together. Jinn, a proponent of the living Force over the more serene unifying Force, had long been a maverick in the eyes of the Jedi Council. Obi-Wan implored his master not to go against the Council, but Qui-Gon always responded by saying that he must do as the will of the Force advises.
During the liberation of Naboo, Qui-Gon and Obi-Wan were challenged by a deadly Sith Lord. A forgotten menace, the Sith had returned after centuries of seeming extinction. For the first time in ages, Jedi and Sith dueled. The dark warrior, Darth Maul, used his incredible speed, rage and his double-ended lightsaber to fend off both Jedi. As the duel progressed, Obi-Wan and Qui-Gon became separated. He watched helplessly as Maul killed Qui-Gon, and rushed to kill the Sith Lord in turn.
Qui-Gon's dying words were a request for Obi-Wan to train Anakin, despite the Council's objection. The Council ultimately agreed with Obi-Wan taking Anakin as a Padawan -- though Jedi Master Yoda had strong reservations about it. The Council also bestowed upon Obi-Wan the title and rank of Jedi Knight.
Obi-Wan incorrectly believed that he could train Anakin as skillfully as the revered Yoda. He would later admit that he was wrong. His arrogance had grave consequences for the galaxy. Anakin Skywalker succumbed to the temptations of the dark side, and was reborn as a Dark Lord of the Sith, Darth Vader.
Obi-Wan was instrumental in hiding Anakin's offspring, so that neither the Dark Lord, nor his master, the Emperor Palpatine, knew of their whereabouts. He took the young boy, Luke, to live with Owen and Beru Lars, moisture farmers on Tatooine. The young girl, Leia, was taken to Viceroy Bail Organa of Alderaan, whom Obi-Wan had served during the Clone Wars.
As the Jedi's ranks were wiped out by the machinations of the emergent Empire, Obi-Wan went into hiding on Tatooine. He would stay there for decades, adopting the name of Ben. The locals would refer to him as a "crazy old hermit," and gave the eccentric old man a wide berth.
During the height of the Galactic Civil War, Leia Organa secured plans to the Empire's most diabolical weapon -- the Death Star. Her mission was to contact Obi-Wan Kenobi, and bring both Kenobi and the plans to her adoptive father on Alderaan. Captured by the Imperial agents, Leia was unable to complete either goal. She instead placed the plans into the memory systems of an R2 unit, and dispatched the droid to Tatooine.
The droid R2-D2 and his companion C-3PO came into the ownership of Owen Lars. R2-D2 was adamant in continuing his mission of getting the plans to Kenobi, and fled the Lars Homestead. When Luke Skywalker pursued the little droid, he came face to face with Obi-Wan.
Obi-Wan explained to Luke about his father, though the Jedi didn't reveal the whole truth to the lad. Uncertain that Luke would be ready for the burden, Kenobi explained to him that Anakin Skywalker was an amazing pilot, a great warrior and a good friend. Obi-Wan attributed Anakin's death to a rogue pupil of his, Darth Vader, who betrayed and murdered Anakin. Since, Kenobi reasoned, Anakin ceased to be upon the emergence of Vader, what he told Luke was true, from a certain point of view. Obi-Wan even gave Luke a gift from his father: Anakin Skywalker's blue-bladed lightsaber. Thus began Luke's journey into the world of the Jedi.
Obi-Wan tried to train Luke as much as he could in their short time together. As testament to the desperation of these dark times, Kenobi knew full well that Skywalker would never have been trained in the old days of the Jedi. He was far too old to begin training. Nonetheless, Kenobi saw a chance to redeem his fallen pupil through Luke.
Having taken the mission to rescue Princess Leia from the Empire, Obi-Wan and Luke hired Han Solo's Millennium Falcon as transportation to Alderaan. During the trip, Kenobi began Luke's lightsaber training. The brief session was cut short as the Falcon emerged from hyperspace to find Alderaan destroyed by the Death Star.
The tramp freighter was captured by the Empire and taken aboard the Death Star. Once aboard, it was Kenobi's mission to disable the tractor beam terminal responsible for holding the ship. Kenobi did so, carefully sneaking through the labyrinthine corridors of the battle station. Though his skill in the Force kept his presence a secret from stormtroopers and Imperial officers, it only served to draw the attention of Darth Vader.
The Dark Lord confronted Kenobi as the Jedi was returning to the Falcon. After decades of delay, Vader finally squared off against his former master. As a diversionary tactic to help the others escape, Kenobi sacrificed himself to Vader. The Dark Lord struck the Jedi down, and Kenobi became one with the Force. He left behind no body, just empty robes and his own Jedi weapon.
Kenobi's death strengthened Skywalker's resolve to serve both the Rebellion and the Force. At times of great trial, Kenobi's voice would reach out to Luke, offering counsel. Later, the spectral form of Kenobi would appear to Luke. The ghost-like image advised young Skywalker to venture to Dagobah, where he could complete his training under the guidance of Yoda.
Later, Kenobi appeared to Luke and revealed the truth of his lineage. Though Kenobi felt that the dark side could only be defeated by bringing about the deaths of Anakin and the Emperor, Luke strongly believed that his father still had good in him. Luke set out to turn Anakin away from the dark side and succeeded, though at a great price. Anakin suffered grievous wounds in his final battle, and died having returned to the light. His spectral form joined that of Kenobi and Yoda during the Rebel's celebration of the Empire's defeat.