After Solo and Chewbacca escape, they flee desperately to a secret Imperial research laboratory surrounded by a cluster of black holes-and go from one danger to a far greater one. While Luke Skywalker takes the first step toward setting up an academy to train a new order of Jedi Knights, Han Solo and Chewbacca are taken prisoner on the planet Kessel and forced to work in the fathomless depths of a spice mine.