He is the son of Lex Luthor and his real name is Lex Luthor, Jr or Troll. He hires someone else to pretend to be Lex's real son. Mr. Smith falls for Lois like his father.First, he sent a robot. Then, he sent a shadow to kill Lois.Then , he makes the fake Mr. Smith kidnap her. After, he kills him and he freezes Lois. Then, there's an explosion and both the fake and the real Mr. Smith die.