The Unity story comprises eighteen issues and nine comic book series, published by Valiant during August and September 1992. It tells of Erica Pierce, the Mothergod, trying to rewrite reality and restore her original universe. The story has strong time travel and alternate timeline themes.
Unity is set in the Lost Land from the comic book Turok, a place in the middle of the time stream where time moves very slowly. As a result, it is still in the age of dinosaurs. When Mothergod arrives there, she begins constructing the Unity tower, with which she intends to destroy the universe.