Star Trek: Harlan Ellison's City on the Edge of Forever #3 (of 5);

Harlan Ellison's Hugo- and WGA Award-winning teleplay, visualized for the first time! Stranded in the past of old Earth, Captain Kirk and Mr. Spock search for the focal point that altered the timestream and changed everything about the universe they knew. And once they find her, they could find themselves foiled by a force even greater than the Guardians of Forever--love!