Bearded Spock and the evil Captain Kirk return to the spotlight in an eight-part sequel to "Mirror, Mirror" set directly after Star Trek III: The Search for Spock, in which the Empire sends the alternate James Kirk to lead a full-scale invasion of the Federation's universe. An examination of the Empire's history, a look at the Mirror Klingons and Romulans, and a mindmeld between both Spocks make this the best of DC's line -- and the quintessential Star Trek comic of all time.
— Description from Comic Vine community (comicvine.gamespot.com).