In the time before time, the Force united all peoples in the universe, and all was well. But the Force's brothers, the Sith, grew jealous of the people's devotion to it, so they cast a spell that made the Force sleep. And then the Sith were free to spread their darkness.
The people of the universe suffered greatly at the hands of the Sith, until one day when six a hero known as a Jedi appeared. He challenged the Sith's darkness, and began a quest to reawaken the Force.
After many years (three of which were prequels) the Jedi accomplished this task, and the Force awoke. But alas, this was all part of the Sith's master plan, and before the Force's spirit could return to it's body (which was the entire universe) the leader of the Sith slipped in and took control of it. The Force was then expelled from the universe, landing on a distant desert planet of Jakku. Now mostly powerless, the Force must help the war torn locals and learn how to become a true Hero.
That is the tale of the Star Wars.