Smallville is coming back to the airwaves on January 31, 2008 with episode 7.10 Persona. But as much as fans are anticipating that episode, which features the return of James Marsters as Braniac, they're even more eager for the following episode, Siren, which will bring Justin Hartley back as Green Arrow/Oliver Queen and introduce the character of Black Canary to the Smallville universe. And now, thanks to Entertainment News International we have the official plot description from the CW, as well as pictures of the new heroine.

The synopsis from the CW states:

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THE GREEN ARROW AND BLACK CANARY BATTLE IN SMALLVILLE - While secretly working for Oliver (guest star Justin Hartley), Chloe (Allison Mack) intercepts one of Lex's (Michael Rosenbaum) project files, but she is attacked by the Black Canary (guest star Alaina Huffman), a mystery woman with a subsonic cry. Dinah Lance, Black Canary's alter ego, is a conservative talk show host who is working at the Daily Planet and clashes with Lois (Erica Durance). Lex convinces the Black Canary that the Green Arrow and his team are terrorists so she launches an attack on the Green Arrow and Clark (Tom Welling). Meanwhile, Lois discovers Oliver's secret. Kristin Kreuk, Aaron Ashmore, Laura Vandervoort and John Glover also star. Kevin Fair directed the episode written by Brian Peterson & Kelly Souders.

Siren will air in February, 2008.