18. Shadow of a Doubt

One by one the people who were involved in Vixen's creation are getting murdered by a man named Hanson who appears to be a shadow and works for Mr. Smith (Keith Brunsmann). Lois and Clark try to solve the mystery while at the same time consider if they can have a kid together. Leslie ( Patrick Cassidy ) continues his plan of drifting Lois and Clark apart while at the same time trying, along with Mr. Smith, to rebuild Luthor's empire. He sends Lois to a convention and Clark to an exclusive interview while he follows Lois and hits on her causing misunderstandings between the couple.

When the shadow attacks Lois, Superman manages to destroy him. Lois and Clark put the pieces together and find out who is behind everything and that his next target is Leslie. Leslie kills the man before Lois and Clark can talk to him claiming that he attacked him first. Lois and Clark put the pieces together, and Lois saw the file that Lex Luthor owned some of the places. Lex showed her his diagram of all his holdings, Clark found out Leslie was the target by the shadow figure and Jimmy got a list of Leslie's holdings were all part of Lex's empire.

Lois told Clark the shadow figure said, he will go after the son of the man who knew Superman's identity. Lois and Clark knew Lex had knowledge of Clark's identity and suspect that Leslie is Lex Luthor's son. Later on, Leslie and Mr. Smith hear a recording of Luthor ( John Shea 's voice) saying that Clark Kent is Superman. Note: John Shea returned as the voice of Lex Luthor.