The brother and sister duo will try to take over Clark's work of fighting crimes but they are unfortunately not so neat in their job.
All new in "Smallville", there is an imposter of The Blur trying to handle crimes in a messy way. Superhero twins Zan and Jayna show up in Metropolis to help The Blur fight crime but end up botching several rescues, landing Clark in hot water with the District Attorney's office. Clark decides to come forward as The Blur to clear his name.
The Wonder Twins are the DC Comics superheroes who get their power if they touch hands and say "Wonder Twins Power Activate!". In the comic version, Zan can transform into water while Zayna can shape shift into any kind of animal. The show cast non-sibling actors David Gallagher to play Zan and Allison Scagliotti to play Zayna.
Not only focusing on the twins, the November 13 episode will also see a progress in Clark and Lois' relationship. "So over the course of the season she's falling even harder for Clark while still having that kind of pang of interest and mystery in this guy called The Blur," exec producer Brian Peterson said. "Everyone needs to watch episode eight which is called 'Idol' and Lois finally goes to therapy to deal with this issue. Lois in therapy is something everyone needs to watch."
On another "Smallville" news, the show will welcome back Serinda Swan to reprise her role as Zatanna. "There was always the hint that she might return one day, so I was keeping my fingers crossed," Swan told TV Guide Magazine. "I love the cast and I really like the character." So far, the plan is to put her in early 2010 episode called "Warrior".