How about this:
The Clone Wars have raged on for 4 bloody years. The Jedi are overwhelmed and desperate.
Whole planets are being destroyed.
In retaliation for Palpatine's martial law, Naboo is completely destroyed. The Gungans are wiped out.
The Naboo contingeant on Coruscant is still strong, still fighting though.
Senator Padme Amidala is 9 months pregnant with her unborn children (or child if it is unknown that they are twins). In light of the Clone Wars, she refuses to settle down and just lay still while she feels responsible in part, having worked to defeat the Army Creation Act that led the Republic to war (versus a diplomatic solution) so she tries her best to set things right as a Senator and the last of the Naboo. Her whole family has been wiped out - killed when Naboo was ravaged, and the reason why the twins don't live with their grandparents.
Representative JarJar Binks' played the fool and authorized an army that started a war which eradicated his people. He too is trying to set things straight and is totally ostracized and loathed by Amidala. The bridge he created between the Naboo and the Gungans with her is totally in ashes. He is more annoying than ever, constantly trying to make it up to her and help her. Only for Padme, irritable, as she's pregnant, to be more annoyed with JarJar than the audience (if that's possible).
Meanwhile, to stay close to his wife, Anakin Skywalker, EX-JEDI KNIGHT has been made advisor to the Supreme Chancellor Palpatine, another of the last of the Naboo. He defends the people left from the world he held most dearest. But he resents the Jedi who expelled him for breaking the code and his oath, and he learns to feel hatred for them for their keeping him from saving his mother. He fails to understand WHY they let Shmi have a life, as Anakin thinks only of himself, still the whiny, emotionaly immature child that wants everything.
The Jedi meanwhile continue to fight for the Loyalists (including Bail Organa, an ally of Palpatines) against the Rebel Separatists. They command the Clones and Obi-Wan is made a General. But they are getting slaughtered. Having seen the Clone Troopers' superiority in a fight, the Separatists commission their own Clone Army funded by Count Dooku. They get a new donor who looks a lot like Harrison Ford. The orphaned Boba Fett needs to survive and takes command of these Clones to fight the perverse Republic that turned his father's clones against them and enslaved them to the Jedi. He dons Jaster Mureel's old armor - the man who Jango told his son about - the one who had saved Jango's life long ago. And Fett fulfills his father's destiny and leads an army of Mandalorian Clad Clones into battle. The Jedi and Republic Clones are getting slaughtered!
The Separatists have advanced to the Galactic Core and a great battle is being fought on Alderaan!
An urgent message from Obi-Wan Kenobi calls back to Coruscant and Palpatine's office: "Anakin Skywalker, years ago you served the Jedi Order as my Padawan. Now I beg you for your help in my struggle against the Separatists..."
Smug that 'OK, now he's NEEDED,' the greatest of all Jedi leaves Coruscant to fight his way to his former master in a pitched Starfighter battle that shows that Anakin is indeed the best Starfighter pilot in the galaxy.
Anakin rejoins his former Master and Anakin proves that he has not stopped learning about the Force. He has studied forbidden knowledge of the Dark Side from Sith artifacts that have fallen into his hands through his benefactor, Palpatine. With his newfound powers combined with Obi-Wan's, they duel and destroy Count Dooku! Before he dies, while he's fatally wounded, Anakin runs off when a transmission comes through by a desperate Padme Amidala!
The Trade Federation and Techno Union cower in light of these events, but the Mandalorians won't give up!
In a stealth strike on Coruscant, they hit the capital and capture the Loyalist Party leaders: Bail Organa, JarJar Binks, and the pregnant Padme Amidala! It is a spectacular mini-battle that pits the Chancellor's Royal Guards against the Mandalorians! But the Guardsmen are defeated, though they buy time for Palpatine to escape to a secret underground bunker in the firey bowels of Coruscant!
They are taken away as prisoners of war and held at some other location. Perhaps a conquered Corellia?
Meanwhile, as Dooku dies, he says he had joined the Sith to destroy them from within, but failed. He says all the lives lost in the Clone Wars would have been worth it if by going along with everything, he'd stopped the birth of a new age of evil and a Sith Empire, but he failed. He tells Obi-Wan that Palpatine is the real Dark Lord of the Sith. Perhaps he carries a holo-transmission to "prove it."
But the Mandalorian Clones have suffered severe losses too. Their youngest soldiers, some of them but only 11 years old, are needed to guard the prisoners while the adults do the fighting.
Anakin rushes back to Coruscant and security forces send him to Palpatine. He tells him that his pregnant wife and child / children were killed in the attack while Anakin was away helping Obi-Wan.
He tells Anakin that the war is going far too badly for the Republic and even Dooku's death won't make a difference against the Mandalorian Clones. He says that is because they are being led by the Jedi who concocted this whole thing as a conspiracy with Dooku so that they could sieze power. The Jedi High Council has been manipulating everything and Obi-Wan was blind if he could not see it. Everything he advised Anakin on led the younger Jedi astray and he was unwittingly a part of this whole thing.
Meanwhile Obi-Wan goes back to the Jedi to tell them what he's learned. He is instructed to find his former padawan as they will need everyone's help, especially if the boy really could be the Chosen One. Obi-Wan traces Anakin to the molten depths of Corusant and finds Palpatine!
He claims the Chancellor is the Dark Lord of the Sith and must be destroyed. Anakin blames him for Padme's death and the deaths of his unborn children and his mother, 4 years ago. He will not let Obi-Wan kill Palpatine, the last of those who have been good to him. And he thinks Obi-Wan is crazy - Palpatine is not the Dark Lord of the Sith. But Obi-Wan moves to fulfill his mission and Anakin's emotions come to a boil. The two square off and fight - Master vs. Former Apprentice. All of Anakin's rage surges, but his will to live is sapped, tears fall as he accuses Obi-Wan of preventing him from saving Padme. Anakin swears he himself is a failure and doesn't deserve to live, but he will make Obi-Wan pay for what he's done first. But his emotions do not allow him to concentrate, and the teary-eyed youth gets hit by Kenobi's saber again and again! Across the face, in back of the head. But Obi-Wan fights to defend. When Anakin loses his concentration, he falls over the edge, his arm cut off perhaps, and holding on with the other arm. His lightsaber slides away on the ground.
Obi-Wan rushes forward to save Anakin, forgive him for his mistakes. He offers Anakin his hand, but Anakin refuses to take it. Anakin loses his grip and falls plunging toward the lava! Obi-Wan wipes away tears and picks up Anakin's fallen saber - all he has to remember his former padawan by.
Obi-Wan turns, but Palpatine has escaped!
Meanwhile, Boba Fett moves to the forward command and confronts the late-Dooku's second in command - a traitorous Republic commander Tarkin. Tarkin receives orders from Darth Sidious, knowing he has lost Lord Tyranus to the Force. They will make a treaty with the Separatists to end this war, but the Loyalists must die. Alderaan must completely disarm and surrender to the Separatists so they can safely return to their systems, but their will be a new Empire born out of the rejoining of the Rebel systems and the Old Republic - one Sidious 'has assurances will be accepted by the war weary public.' Palpatine will preside 'benevolently' over a more direct, authoritative government that will allow the Separatists to remain in power and control their special interests to their own advantage. Tarkin accepts these conditions if he will gain power. Fett feels betrayed, but he's young and has no one else to pay his way in the galaxy. He is ordered to Corellia to kill the Loyalist prisoners.
Meanwhile, Obi-Wan returns to the Jedi and tells some of them of the tragedy. His wounds severe, he cannot go on the rescue mission when intelligence learns that the Loyalists are still alive and being held prisoner.
Just then Chancellor Palpatine comes on the air and says the Jedi are responsible for the war. They took command of the Republic's Clones and Dooku led the rebellion. On top of that, Obi-Wan Kenobi just tried to assasinate the Supreme Chancellor and slayed Anakin Skywalker, Alderaan's hero and the Chancellor's protector, in the process. The Jedi must be purged and the Senate is completely corrupted, the Loyalists having been killed and the rest remaining suspect. He will push for a bold, new offensive against the Jedi, this will destroy their control over the Clones and end the war. He calls for all the Jedi to be lynched basically.
The Jedi assigned to the rescue mission must move quickly, because if saved, they can provide testimony to the Jedi's innocense!
Meanwhile, the orders come down to Corellia to kill the prisoners. A young Clone guarding them is in command and knows Fett is arriving soon. Padme has just given birth, and prior to the order, with no reason not to, the young Clone helped the Loyalists give her the medical attention necessary for the children to be born. Now he is ordered to simply kill them all!
He can't. He disobeys orders and tells them he'll provide them with a means of escape, weapons, etc. Padme asks why, and the young Clone says "Maybe you'd like it back in your cell, Your Highness?"
They flee as Boba Fett arrives. Bail Organa grabs a blaster and defends Amidala, as JarJar pleads with her that it's not his fault. Bail and the young Clones are going to be quickly over-ran when the Jedi arrive!
Mace Windu commands them. Boba Fett recognizes this Jedi in particular! It's personal, but he makes a note that he has another score to settle with that young Clone who disobeyed his orders, too!
The Jedi and Mandalorians now fight it out! The Knights get to the Loyalists, then split up when Mace realizes that they have the children of Skywalker! If Anakin is dead, perhaps the children will bring balance to the Force? Mace will lead Fett away from them! To do so, he plays upon Boba's unprofessional hatred and Fett makes the mistake of going after Mace while Padme gets away. Mace allows himself to get cornered because it draws Fett after the target he's been longing for. But Mace is no longer there - he closes his eyes and disintegrates! Becoming one with the Force!
Meanwhile, Ki-Adi Mundi and Plo Koon get Padme, Bail, and JarJar out of there. The young Clone is advised to run away and he does so. But where are the Jedi going to run to?
On Coruscant, the Jedi Temple is under attack! It's lynch mobs and police alike! Obi-Wan battles his way out of there and tries to get the Jedi children to safety. Yoda flees quietly in another direction, but senses a grave disturbance in the Force.
Anakin's body is on a ledge he fell on, just above the lava. He is NOT in the lava, but the heat is burning his skin and the air is (figuratively) setting fire to his lungs. He cries out in pain for Padme and collapses - we presume he's dead. A shadow falls across the body. Cut the scene.
Palpatine proclaims the main body of the Separatist forces are caving in without their Jedi commanders. He says they will sign a treaty to be under direct control of a New Order - one with the strength that can handle their dissent, and he will serve as an Emperor in a new government that will unite the galaxy to rebuild itself into a new golden age. A new Senate will retain power to one day restore the Republic when all the rebellions are put down, but meantwhile, someone the galaxy cantrust, Palpatine of course, will command over the reconstruction of this new galactic unity. Tarkin signs a treaty with him and is made a governor over the Separatists on the Outer Rim.
The new Emperor appears with a new Enforcer at his side - a persecuted Sith Lord, Darth Vader. The Sith were responsible Force-users the Jedi killed off or horribly maimed and betrayed because the Sith represented Order, but one where the Jedi would hold no power. Without Lord Vader, Palpatine proclaims, the Separatists would not have been convinced to surrender.
Meanwhile, Yoda meets Ki-Adi Mundi, Plo Koon, and the loyalists. He learns of the survival of the children of Skywalker and hears a final transmission recorded earlier by Mace. Yoda reconsiders the Prophesy. Bail insists on getting them to Alderaan, but the Core is blockaded. They have to take the Corellian Trade Route which runs out past Dagobah. There they will split up if followed. Yoda sends a transmission to Obi-Wan, only informing him of a rendezvous point.
Boba Fett, frustrated, begins to track them. Through Tarkin, Vader learns of his employ. Vader is obsessed to learn what happened to the Jedi on Corellia, as they must be destroyed - Palpatine convinced him so. When he meets Fett, he wants to kill him for what he presumes they did to his wife. But as Fett pleads for his life, Vader is intrigued to learn that the Jedi came there to protect a pregnant Senator and that they were rescued - the Mandalorians did not kill them as Palpatine 'mistakenly' thought. So Vader forces Fett to work as a hunter, tracking them. Slave-One picks up the trail and calls Vader in to Dagobah. They land with troops and begin to search the swamps. Fett waits in space, hoping for payment for his services.
The Jedi must split up again. Yoda and Plo Koon will stay behind while Ki-Adi Mundi gets Padme, Bail, JarJar, and the baby twins to safety as Darth Vader stalks them through the swamps. Yoda had stressed that the twins could hold the Chosen One and they must be split up so that at least one of them could survive.
Padme won't abide JarJar, so she and Leia go with Bail Organa. JarJar goes with Ki Adi Mundi.
Plo Koon is wounded and give into his fear and uses the Dark instincts native to his species. A spectacular battle begins but Plo ends up defeated and dies in the tree cave, while Yoda with superior skills, had took on all the Clone Troopers that Vader had commanded. When Vader returns from that awesome fight with Plo Koon, he finds the Loyalist ships gone, and assumes other Jedi that LEFT, killed the Clones.
Vader too leaves - to hunt them down!
Yoda remains behind. No ship is left to take him away. But he was shocked to observe Darth Vader from afar - there was something very familiar about him!
"Hmmm." Yoda says.
Meanwhile, Boba Fett detected the two Loyalist ships leaving Dagobah and chose to follow one. It's Ki Adi Mundi's. They are attacked and Ki has to land. The two of them must split up again, and Ki tells JarJar to take the baby and make sure he can get it to Obi-Wan Kenobi.
At the spaceport, Ki Adi Mundi prepares to slay Boba Fett, but instead of Fett, he faces Darth Vader! You know the outcome!
Obi-Wan Kenobi gets an urgent message pre-recorded from Ki-Adi Mundi. Kenobi has gotten some children to safety and told them to hide, make whatever life they can, remember to use their abilities for good, but never let on to anyone that they were ever Jedi, or they would be caught and put to death!
So Obi-Wan tracks Ki-Adi Mundi's signal to not Ki, but JarJar, who has a baby who he's told is the Son of Skywalker! Obi-Wan knows what THEY must do, when Ki-Adi Mundi's signal is traced - by Boba Fett! Knowing that he could never make things up to Padme for helping start this war, JarJar will help save her son by leading Fett away. It is assumed that the loyalist party that Vader is looking for is this one, as witnesses tell Fett that one of them had a baby! Fett tracks the signal to a ship (JarJar's) and destroys it as it takes off! (JarJar is totally blown to pieces!) Vader arrives on the scene and yells he wanted them alive! (Fett did have orders to kill them though) Vader turns to Fett and says "No disintegrations." Fett is stiffed by a curiously grieving Darth Vader, but threatened when he asks for payment that he will be paid by Vader sparing his life. Weary from his battles the Dark Lord returns to his new Master, Palpatine.
Padme, Bail, and baby Leia arrive on Alderaan. On this war ravaged planet that is being forced to disarm, rebuild, and repair, they stare up at the stars and wonder what the future will hold.
On a distant planet, circling two of those stars, Obi-Wan takes the baby Luke to the only living relatives he knows survived - Anakin's step-father and his family. But Cliegg has died from his wounds and Owen now runs the family farm with his young wife, Beru. They take the child from the Jedi, and following Owen's experience and character estimation of Anakin, tells Obi-Wan to get out of there and never bring his troubles back.
Obi-Wan Kenobi walks away, unable to stop the suns from setting.