Smallville star Erica Durance has revealed details about an upcoming episode of the show.

The actress told TV Guide that Clark (Tom Welling) and his allies will wake up in a parallel world following their capture at the conclusion of the recent episode 'Icarus'.

"They created an alternate reality for these characters and they don't know which is the real one and which isn't," she explained. "It's mainly [centered] around Clark figuring out what world he's in and which is the right one."

Durance, who plays Lois Lane in the CW drama, added that Chloe Sullivan (Allison Mack) will come under suspicion when she returns from a self-imposed exile.

She confirmed: "[The episode] introduces Chloe back in the whole mishmash, and she ends up actually being a bit of a nemesis to Lois."

Smallville returns to The CW on January 28 at 8/7c.