Caitlin turns cold in THE FLASH’s new “Killer Frost” sneak peek!

Sweet, level-headed Caitlin Snow (Danielle Panabaker) is going on a wild ride on tonight’s episode of The Flash!

“Killer Frost”, directed by Kevin Smith, follows the gang after Caitlin overuses her powers an morphs into her evil counterpart. Barry (Grant Gustin) and the STAR Labs team struggle to stop her, especially since she’s taken Julian (Tom Felton) as her hostage. Is there still hope that Caitlin is in there somewhere?

The episode is also the first introduction to Greg Grunberg in his recurring role as the CCPD’s Detective Tom Patterson. Executive Producer Todd Helbing is sharing all the details in a behind the scenes sneak peek!

“Killer Frost” airs tonight on The CW.

Caitlin (Danielle Panabaker) uses her powers to save Barry (Grant Gustin) but as her mother predicted, the effort unleashes her inner Killer Frost. Killer Frost goes on a rampage looking for Dr. Alchemy, kidnapping Julian (Tom Felton) and battling both The Flash and Vibe (Carlos Valdes). Meanwhile, Joe (Jesse L. Martin) and H.R. (Tom Cavanagh) have a heart to heart talk.