The Flash (2014– )
17 user 9 critic

Snow Pack 

Caitlin must resolve her relationship with her mother when Icicle returns to enact the next phase of his devious plan; Iris takes matters into her own hands after Barry makes a decision about their family without consulting her.


Jeff Cassidy


Greg Berlanti (developed by), Andrew Kreisberg (developed by) | 8 more credits »

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Episode complete credited cast:
Grant Gustin ... Barry Allen / The Flash
Candice Patton ... Iris West-Allen
Danielle Panabaker ... Caitlin Snow / Killer Frost
Carlos Valdes ... Cisco Ramon (credit only)
Hartley Sawyer ... Ralph Dibny
Danielle Nicolet ... Cecille Horton
Jessica Parker Kennedy ... Nora West-Allen / XS
Tom Cavanagh ... Sherloque Wells / Eobard Thawne
Jesse L. Martin ... Joe West
Sarah Carter ... Grace Gibbons / Cicada
Susan Walters ... Dr. Carla Tannhauser
Kyle Secor ... Thomas Snow / Icicle
Bruce Crawford ... JP Chipera
Everick Golding ... Trevor Shinick
Islie Hirvonen ... Grace Gibbons


When Icicle returns to enact the next phase of his devious plan, Caitlin and her mother, Dr. Carla Tannhauser, must resolve their long-combative relationship to defeat the icy monster. After Barry makes a big decision about their family without consulting her, Iris decides to take matters into her own hands. Written by sarah_l91

Plot Summary | Add Synopsis


TV-PG | See all certifications »






Release Date:

23 April 2019 (USA) See more »

Filming Locations:

British Columbia, Canada

Company Credits

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Technical Specs


Sound Mix:




Aspect Ratio:

16:9 HD
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Did You Know?


In the comics, The Negative Speed Force was created by Eobard Thawne as a negative version of the Speed Force. It is an extra-dimensional field of negative energy that eats away at the regular Speed Force like a cancer and can consume any speedster connected to it by touch. See more »


The Flash: I need to phase Carla out of a cryo-chamber, but it's too cold. I can't even touch it.
Joe West: All right, we need heat fast.
Iris West-Allen: What if he generates a lightning bolt?
Joe West: He can't throw a bolt. That would kill her.
Ralph Dibny: Then why doesn't he just, uh, hold onto it?
Joe West: That could kill him!
See more »


References The Silence of the Lambs (1991) See more »

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User Reviews

The Flash is trash. Put Nora on the curb.
26 April 2019 | by csisler-73239See all my reviews

This episode is a complete pile of trash. What the hell is this stupid Icicle plot...terrible. This season cannot end fast enough with this stupid Nora arch. Everything about her is annoying.

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