Three weeks after Jimmy's death and Lois' disappearance, Clark buried himself in his Kryptonian training with Jor-El until Lois reappeared, which began to distract him. As Clark kept an eye on Lois, he realized that she was being followed by a Kryptonian assassin from the future but, when he confronted the assassin, he discovered that she was actually after him and explained that she came to defeat him before he "destroyed their world." After defeated her, Clark began to worry about what she had said and discovered he has only a year to find out.