17. Seconds

Complete story — includes the ending

Lois is still with Lex Luthor ( John Shea ) believing that she is Wanda, the heroine from her unfinished novel, and Lex is Kent. Lex worries that Lois will soon recover her memory and plans to leave town with her as soon as possible. Lois' clone falls in love with Clark and after she apologises for trying to kill Lois, she helps him find her. Lex kidnaps the clone, angry at her betrayal and tells her that she only has two days to live. In hope that he will fix her, she tells him that Clark Kent is Superman, but Lex tells her that there is no way of increasing her life span. Lex then obtains a dangerous weapon called the A-Tech Quantum Disrupter that can kill his archenemy once and for all. He tries to convince Lois to kill Clark so her love for him will die. When all of them meet at the hideout of Lex, Lois cannot kill Superman and when Lex tries to do it, the clone tries to stop him which ends up killing them both. Clark manages to get Lois out of the hideout before it collapses while the dead bodies of the clone and Lex are both left behind. On their way out, Lois gets hit by a falling rock. It is revealed later at the hospital that the head trauma has not only stopped Lois believing that she is Wanda Detroit any longer but she now has total amnesia and neither remembers who she nor Clark or even her Daily Planet colleagues are at all. Note: This episode marks the final physical appearance of John Shea as Lex Luthor, but he returned as Luthor's voice in Season 4 for two episodes.