In this episode is about a girl who is a shapeshifter. She can mimic someones looks. The rich Lex Luther robs a bank and Clark saw him. At this point, Clark discovers new ability, to see through things. He saw Lex running away from the crime. And when he was knocked over by Lex, Clark saw through Lex's that he has some green stuff in his body. Just like kryptonite. It so happens that the person responsible for the robbery wasn't Lex. It was a girl named Tina Greer. She took the money home and showed it to her mother who disagrees with her robbing the bank. It ended up that Tina killed her mother by accidentally pushing her down the stairs. She hides her body and eventually change appearance to disquise as her mother so she can run the antique shop. Tina worships Lana and she wants to be friends with her. She even told Lana that she can move in with her and her aunt because her mother went away and that she will pay good price. When Martha Kent went to the store to pick up something, Tina disquises herself again as her mother but ended up not having a clue what Mrs. Kent wants to pick up at the shop. Mrs. Kent soon found a large amount of stash hidden under the furniture. Tina is having doubts that the Kent's suspects something so she disquises herself as Clark and took the car keys then tried to run over Mrs. Kent.

Soon, they found out that it wasn't Clark who was driving the truck eventhough it looks just like him. Now it is all clear that Tina was the one doing all the trouble. Tina disquises again as Lana to visit Clark and they kissed. Clark thought it was for real but it was actually Tina. The short fight begins. Now, Tina is after Lana. She disguises as Lana again at school to take the jacket of Lana's boyfriend, Whitney. Looks like Tina is up to something bad. She disquises as Whitney and met with Lana at the cemetary where she attacked her and locked her up in a tomb. Clark then arrives to save Lana. He uses his new power to find her and he did. He saved her out of the tomb and the real fight began and defeated the shapeshifter, Tina. Now that Lana is safe, Clark and his mom was outside of Lana's house. Clark really like Lana so he uses his x-ray vision to see what was going on inside. He saw that Whitney is embrasing Lana. Then he asked his mother if what she would do if she can see through things and she replied.. I would keep my eyes shut..