Reduce the plot of (this universes) episode 1 (i.e finding Anakin)into a 15 minute flashback or the opening of the good alterep1.
Make Anakin around 25 and more of a Han solo type character, don't make him whiny.
Ep1
Him and obi wan visit Alderaan (not Naboo, that's pointless.) which has been invaded by the TF for minerals or something . They rescue the queen and escape to Courscant where they meet Qui-Gon Jinn, and discuss with the jedi council what to do, (Dooku is on the council.) Palpatine (Who is chancellor) and the senate decide to invade to Alderaan with the republic's milita. Big battle. Qui-gon and Obi wan land and fight Darth maul. Qui-gon and Maul die like in the film. War has come to the Galaxy.
EP2
War has been going on for a few year now. Republic Milita are now battle hardened vets. Clones are used to keep the army numbers high. Anakin is getting fustrated by the lack of progress and starts using darker and darker techniques to win battles. Palps sees this and reassures this is ok.A few battles goes wrong and lots of jedi get killed. Anakin and the queen get married.
EP3
War is coming to an end. Anakin is ~31 Padme is pregnant. Things happen and he turns evil. war ends, empire is formed and he hunts down the jedi. Padme is in denial and 9 months late gives birth They hide Luke and kept leia with padme. A few years later padme while dies 'kind but sad' Obiwan tracks them vader down. Fight. Anakin ends up in Vader suit.
Needs a bit of tweeking but its mainly there.