Baby Clark (Kal-El) arrives on Earth. Teen Clark starts high school, saves Lex's life after a car accident, and finds out about his past and birth parents.

Lana sees the impossible: a friend named Emily Eve Dinsmore, who died six years earlier in a fatal accident at age 10, and still appears that age. Clark Kent believes Lana and searches for the truth. Emily's father Mr. Dinsmore has an accident provoked by Emily and Lionel Luthor visits him in the hospital. Lana and Clark eventually discover that Emily is the result of a Luthor Corp experiment in accelerated cloning. But problems in her chromosomes have caused her to be a flawed copy, resulting in a bad temper, with the power of super-speed and telekinesis. Meanwhile, Lex Luthor plans his wedding with Helen, while Lionel gives Lex a free airline ticket for a honeymoon in the Caribean, and to tie up some loose ends over the Emily cloning matter, and to take control of the old cave away from Lex.