Published prior to Disney's acquisition of Star Wars, this series predates and served as the template for the current Marvel Comics series.
In the wake of the Death Star's destruction, the Empire seems to anticipate and thwart all moves by the struggling Rebel Alliance - which smells a spy among the ranks. Princess Leia forms a stealth squadron of her best pilots - including Luke Skywalker - to expose the spy and find the Alliance a safe home. In another part of the galaxy, Han Solo and Chewbacca are on their own mission for the Rebels, but that, too, has been betrayed to the Empire. And, over all, Darth Vader seeks for a chance to redeem himself.