The remainder of the prequel trilogy chronicles Anakin's gradual fall

The prequel trilogy begins with the Trade Federation blockading the planet Naboo, in response to the Galactic Republic's taxation of trade routes. The Sith Lord Darth Sidious had secretly planned the blockade to give his alter ego, Senator Palpatine, a pretense to overthrow and replace the Supreme Chancellor of the Republic. At the Chancellor's request, the Jedi Knight Qui-Gon Jinn and his apprentice Obi-Wan Kenobi are sent to Naboo to negotiate with the Federation, but are forced to instead help the planet's monarch, Padmé Amidala, escape from the blockade and plea her case before the Galactic Senate on Coruscant. When their spaceship is damaged during the escape, they land on the desert planet Tatooine for repairs, where Qui-Gon discovers a young slave named Anakin Skywalker. Qui-Gon comes to believe that Anakin is the "Chosen One" foretold by Jedi prophecy to bring balance to the Force, and he helps liberate the boy. The Jedi Council, led by Yoda, reluctantly allows Obi-Wan to train Anakin after Qui-Gon is killed by Palpatine's first apprentice, Darth Maul, during the Battle of Naboo.[6]

The remainder of the prequel trilogy chronicles Anakin's gradual fall to the dark side of the Force as he fights in the Clone Wars, which Palpatine secretly engineers to destroy the Republic and lure Anakin into his service.[7] Anakin and Padmé fall in love and secretly wed, and eventually Padmé becomes pregnant. Anakin has a prophetic vision of Padmé dying in childbirth, and Palpatine convinces him that the dark side holds the power to save her life; desperate, Anakin submits to the dark side and takes the Sith name Darth Vader. While Palpatine re-organizes the Republic into the tyrannical Galactic Empire—appointing himself Emperor for life—Vader participates in the extermination of the Jedi Order, culminating in a lightsaber battle between himself and Obi-Wan on the volcanic planet Mustafar.[8] Obi-Wan defeats his former apprentice and friend, severing his limbs and leaving him for dead. Palpatine arrives shortly afterward and saves Vader, placing him into a mechanical suit of armor that keeps him alive. At the same time, Padmé dies while giving birth to twins Luke and Leia. The twins are hidden from Vader and are not told who their real parents are.