It tells a non-canon alternate version of each film in the original Star Wars trilogy in which a point of divergence occurs and changes the outcome of the story.
Luke, enraged by the failure of the mission and the apparent destruction of Rebel base, turns his fighter to face the TIEs alone.
The Rebel leaders are imprisoned on the Death Star to await execution, but Princess Leia is taken to Coruscant, where she is put under house arrest at Emperor Palpatine's's residence, the great former Jedi Temple.
Han and Chewbacca watch coverage of the celebrations in a bar on Ord Mantell and then board the Falcon and head back to Dagobah.
Once there, Luke and Han defeat a number of red-cloaked Imperial Guards and a reprogrammed, more aggressive C-3PO before confronting the Emperor and his two apprentices, Vader and Leia.
The Justice Star crashes into Coruscant, destroying both the planet and the battle station and killing Yoda, Tarkin and the Emperor.
It is an alternate telling of the 1980 film The Empire Strikes Back in which Luke Skywalker freezes to death during the blizzard on Hoth.
Three years after the Rebels' success at the Battle of Yavin, the Alliance sets up a new base on the remote ice world of Hoth.
After escaping from a Wampa ice monster, Luke sees the spirit of Obi-Wan instructing him to go to Dagobah and find the Jedi Master Yoda.
The Millennium Falcon, unable to effectively escape the Hoth System due to a malfunctioning hyperdrive, sets a course for Bespin, where Han hopes he can get repairs to the ship.
After the repairs are finished and the Falcon leaves Bespin, Lando returns to his office to admire his new desk, which is crafted using Boba Fett now carbonite-encased.
Upon learning that the Falcon has already left, Vader orders the devastating bombardment of Cloud City, killing every inhabitant.
Han, determined to settle his debt with Jabba the Hutt, leaves Leia on Dagobah to train with Yoda.
In the confusion, Han and Chewbacca are able to board a Hutt shuttlecraft and escape to the docked Falcon in Mos Eisley.
In his mind, Anakin fights off shadows of long-deceased Jedi such as Obi-Wan Kenobi, Mace Windu and Qui-Gon Jinn.
Vader is then able to deliver a fatal blow to Yoda despite the mental link, severing the Jedi's lock on his mind.
Leia burns her father's body on a funeral pyre before leaving with Han on the Falcon to rejoin the Rebels and save the galaxy.
Princess Leia, posing as the bounty hunter Boushh, infiltrates Jabba's palace in an attempt to rescue Han Solo, who has been frozen in carbonite.
With no translator, Leia is forced to reveal her identity and she threatens Jabba with a thermal detonator, telling him to release Solo.
During the ensuing melee, Leia and Chewbacca chase after Boba Fett, who escapes with Han Solo's carbonite-encased body.
Leia fires on Fett but misses and hits the carbonite block's life support control panel.
Just then, a Star Destroyer drops out of hyperspace over Dagobah; when his ship is caught in a tractor beam, Luke has R2-D2 send a second transmission before the Empire has a chance to jam the signal.
Meanwhile, Boba Fett is holding a meeting with Imperial officials, hoping to sell them Han in his carbonite block.
Lando then prepares the Falcon for an assault on the second Death Star, set to commence when the station's energy shield is destroyed by a Rebel unit on Endor's moon.
Before the fleet leaves for Endor, Leia receives Luke's message from R2-D2 which reveals that they are twins and that Vader is their father.
Anakin, a Jedi once more and now clad in a white variation of the life-support suit he wore as Vader, agrees to help the Rebels track down Palpatine.