Dark Empire

A Rebel-captured Star Destroyer with Luke and Lando on it crashes onto Coruscant. Han and Leia come to the rescue. While there, Luke comes upon an old holo-recording of the Emperor, in which he speaks of his discoveries of the Dark Side, including the ability to create Force storms. One such storm comes and spirits Luke away from the planet, bringing him to the planet Byss, in the center of the galaxy.

There, the unthinkable: Emperor Palpatine is revealed to be alive, reborn via an unholy joining of cloning and Dark Side sorcery. Palpatine attempts to sway him to the Dark Side, offering him control of a new brand of weapon that strip a planet's resources and converts it into weaponry: "The World Devastators." Realising he has no other choice, Luke allows himself to be corrupted, attempting to learn just why his father chose to do so, as well as to sabotage the Empire from within.

The World Devastators, developed by the Death Star design team of Maw Installation, is being used on the planet Calamari, resulting in a fierce one-sided battle there. Leia and Han, looking for clues to Luke's whereabouts, travel to the smuggler space city of Nar Shaddaa, where Han runs into some smuggling buddies (old girlfriend Salla Zend, mechanic Shug Ninx, and Mako Spince, who betrays him to the bounty hunters), and where Leia encounters Vima-Da-Boda, an elderly fallen Jedi (and descendant of Nomi Sunrider). They also learn that another old foe has managed to return from the dead - Boba Fett, who wants to give Han to the Hutts. They barely escape Fett and Spince's trap, and make their way to Byss.

Leia is taken by the Emperor, who reveals the existence of the Jedi Holocron, a holographic cube used in Jedi training. Leia, pregnant with her and Han's third child, takes the Holocron and escapes with Han and Salla to the Rebel base on Pinnacle. They send information from Luke to Lando Calrissian on Calamari, enabling his forces to destroy the World Devastators.

The Emperor (now in a fresh young clone body) arrives in orbit over Pinnacle Base in his massive new flagship, the Eclipse, demanding Leia and the Holocron. Facing Palpatine as a Jedi Knight, Leia brings Luke back from the Dark Side. Uniting their power in the Force, Luke and Leia together destroy Palpatine and his flagship.