The force lightning that struck back at Palpatine has blasted him into our world in present day. The emperor wreaks havoc wanting to control the entire planet. But the Avengers have something to say about this.
He gets trapped in a Blockbuster Video store in the 1990s. He meets Carol Danvers (Captain Marvel) who is also trapped there. They find copies of the Special Editions of the Original Series and watch them on the store monitor. They critique them and discuss the pros and cons. The Emperor finds a copy of the "Highlander" movie and particular likes the energy absorption scenes.
Eventually store security comes and has them both arrested by the police.
As they are cuffed and led away, the Emperor acidly says:
"I am Emperor Palpatine, Order of the Sith, ruler of the galaxy! You cannot detain me! Do you wish to be turned into ash?"
There would be 1 problem I just realized. In the Winter Soldier, near the beginning, The character Falcon, tells Captain America about things to catch up on while he was asleep for 70 years. And one of them was to watch Star Wars
The emperor's army on planet Earth shall consist of the evil MAGA cult. The tagline can be something like "if you thought Jan 6th was bad, you haven't seen anything yet"