Caitlin Snow’s transition into a full-fledged meta will lead her to reconnect with “The Flash”’s chilliest character, and we don’t mean Captain Cold. Killer Frost can give you frostbite, but Mama Snow will make you feel like you’re trapped in an avalanche. 

'The Flash' Caitlin Snow heads home 

Barry Allen’s (Grant Gustin) timeline capers resulted in a few staggering changes as season 3 began, but as far as the STAR Labs crew knows, Caitlin’s (Danielle Panabaker) life is status quo. With fog rolling off her fingers like dry ice, the doc knows her world is far from normal.

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Like Cisco (Carlos Valdes), Snow will opt to keep her condition a secret from the Flash team well through episode 5, turning instead to her estranged mother for help. 

“Desperate to understand what is happening to her, Caitlin visits her mother, Dr. Tannhauser (guest star Susan Walters), a renowned biomedical researcher, in the hopes that her mother can provide some answers about Caitlin’s growing meta-human powers,” The CW said of Nov. 1’s “Monster”. “However, when Dr. Tannhauser treats her daughter like a test subject, Caitlin grows cold and brings up past wounds causing the two to have a major blowout.”

Caitlin has only mentioned her mother once, sharing her familial woes with her Earth-2 doppelganger last season.

It’s not often we see Panabaker’s level-headed character lose her cool (terrible pun intended), but Mama Snow could bring Killer Frost bubbling to the surface.

“You’ve heard snippets throughout the show so far of how her mom is pretty cold,” executive producer Todd Helbing told Entertainment Weekly. “When you meet her, you’ll understand exactly what Caitlin has been talking about and exactly how their dynamic works. You can see how that’s had a long-term effect on Caitlin.”

Where did Caitlin get her powers?

Perhaps the episode will help pin down the origins of Caitlin’s powers.

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While there are some fans that believe Doctor Alchemy is involved, a direct connection to the second particle accelerator explosion seems more likely. Wells’ (Tom Cavanagh) containment protocol failed spectacularly during “Rupture,” which means Caitlin was blasted with just as much dark matter as Jesse Quick (Violett Beane).

Catch "The Flash" Tuesdays at 8 p.m. ET on The CW. Click the video below to see a preview for the series’ next episode, “Magenta.”