Here on Star Wars : Age of the Sith, the back story is the setting that starts our story. We start out in an Alternate Universe in the year 26 ABY. Luke has turned to the darkside, and with his father's help was able to kill Emperor Palpatine. After Usurping power from the dead emperor Lord Vader took on the Role of Dark Lord & Emperor, and took his son, Luke, as his apprentice. 10 Years later, Luke Skywalker slays his father in combat, taking the Mantle of Dark Lord & Emperor and reformed the Sith Order.
We start off with the Backstory, or the plot, and from there the plot is open ended, allowing all the members to fulfill their own destinies through yet unknown means. That means that there are many stories, all going their different ways, weaving patterns into character lives.
While we have the plots of each individual character going on in the every day life, we will also continue the Factions plot, tying the story together. Many of these lives will interact with the factions of the galaxies, and those factions have their own plots which are usually dictated through their figure-head, pretty much going along with that person's or persons (plural) agenda(s) based on how their faction is run.