One thing is clear: the five inhabited worlds of the sector are on the brink of civil war and the once peaceful coexistence of the three leading races -- human, Selonian, and Drallan --  has come to an end.

    Darth Plagueis was a Dark Lord of the Sith, so powerful and so wise that he could use the Force to influence the midi-chlorians to create life. He had such a knowledge of the dark side that he could even keep the ones he cared about from dying.”—Supreme Chancellor Palpatine, Star Wars: Episode III Revenge of the SithDarth Plagueis: one of the most brilliant Sith Lords who ever lived. Possessing power is all he desires. Losing it is the only thing he fears. As an apprentice, he embraces the ruthless ways of the Sith. And when the time is right, he destroys his Master--but vows never to suffer the same fate. For like no other disciple of the dark side, Darth Plagueis learns to command the ultimate power . . . over life and death.Darth Sidious: Plagueis’s chosen apprentice. Under the guidance of his Master, he secretly studies the ways of the Sith, while publicly rising to power in the galactic government, first as Senator, then as Chancellor, and eventually as Emperor.Darth Plagueis and Darth Sidious, Master and acolyte, target the galaxy for domination--and the Jedi Order for annihilation. But can they defy the merciless Sith tradition? Or will the desire of one to rule supreme, and the dream of the other to live forever, sow the seeds of their destruction?

    Humanity’s greatest dreams have become reality. Along with dozens of other sentient races, the people of Earth have formed the United Federation of Planets—a galactic civilization that governs much of the known universe for the good of all. Over the past two centuries, mankind has tamed its basest instincts, and reached the stars…But suppose it hadn’t happened that way at all? Suppose instead humanity’s darkest impulses, its most savage, animalistic desires had triumphed? Suppose that the empire mankind made out in the stars was one ruled by terror, where only those willing to brutalize their own kind and their neighbors could survive?One hundred years ago, four crewmembers of the U.S.S. Enterprise crossed the dimensional barrier and found just such an empire. A mirror image of their own universe, populated by nightmare duplicates of their shipmates. Barely able to escape with their lives, they returned thankful that the accident that brought them there could not be duplicated. Or so they thought.But now the scientists of that empire have found a doorway into our universe. Thier plan: to destroy from within, to replace one of our starships with one of theirs. Their victims: the crew of the U.S.S. Enterprise NCC 1701-D.