The Mission To Mustafar (October 17, 2016)

In 19 BBY, Darth Sidious, the Dark Lord of the Sith and Supreme Chancellor of the Galactic Republic, sent his new apprentice,Darth Vader on a mission to kill the remaining members of the Separatist Council on the volcanic planet of Mustafar. The Council, consisting of the surviving top members of the Confederacy of Independent Systems, was a loose end in Sidious' plot to gain control of the Republic and mold it into the galaxy's first empire. Vader willfully carried out the slaughter after he trapped the council in their war room, where he slew each Separatist leader, one by one. The slaughter ended with the death of Nute Gunray, the Viceroy of the Trade Federation, who was one of the most influential members of the Council.

As the bloodshed came to an end, Vader received the order to send a shutdown signal to all battle droids part of the Separatist Droid Army, ending the Clone Wars, that, for the past three years, had spread across the galaxy. This, coupled with the Chancellor's Declaration of a New Order before the Galactic Senate, secured Sidious' position as the Galactic Emperor of the New Order. Before Vader could leave the planet, he was confronted by his wife, Senator Padmé Amidala of Naboo, who inadvertently smuggled Vader's old master, Obi-Wan Kenobi, to Mustafar. Confusion ensued when the Jedi Master revealed himself, and Vader, believing that Amidala had brought Kenobi to kill him, flew into a rage, and Force choked Amidala; she survived her husband's wrath, but was knocked unconscious.

Kenobi attempted to turn Vader away from the darkness, but the young Sith Lord was too furious to be reasoned with, and he attacked his former teacher, beginning an epic duel between the two former brothers-in-arms, in which Kenobi grievously wounded Vader, who, after his immolation, was left on a river of lava to die. Sidious, however, arrived on the planet, and took his apprentice's ruined body to Coruscant, where Darth Vader was rebuilt into the figure who was feared, as the Empire's most deadly servant, until mere minutes before his death.