The heroes must at last enter the "heart of darkness," the fortress of Evil itself, to destroy its stronghold.

When Han and Leia finally destroy the energy shield generator, Lando and Wedge fly into the Death Star to fire on the reactor core at the center of the space station. While conflict rages around the Death Star, Luke struggles with the dark forces within the Death Star, where he is undergoing a spiritual conflict in his battle of wills with the Emperor.