Supergirl (2015– )
6 user 6 critic

Blood Memory 

Kara joins Nia on a trip to Nia's hometown to visit her family during the town's annual Harvest Festival. While home, Nia's mother encourages her daughter to embrace her destiny. Meanwhile,... See full summary »


Shannon Kohli


Jerry Siegel (based on characters created by), Joe Shuster (based on characters created by) | 10 more credits »

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Episode cast overview, first billed only:
Melissa Benoist ... Kara Danvers / Supergirl
Mehcad Brooks ... James Olsen
Chyler Leigh ... Alex Danvers
Katie McGrath ... Lena Luthor
Jesse Rath ... Querl Dox / Brainiac-5
Sam Witwer ... Agent Liberty (credit only)
Nicole Maines ... Nia Nal
April Parker Jones ... Colonel Lauren Haley (credit only)
David Harewood ... J'onn J'onzz
Kate Burton ... Isabel Nal
Hannah James ... Maeve Nal
Brennan Mejia ... Jerry
Lukas Gage ... Kevin Huggins
Garwin Sanford ... Paul Nal
Brian Cyburt ... Spencer (as Brian Cybert)


Kara joins Nia on a trip to Nia's hometown to visit her family during the town's annual Harvest Festival. While home, Nia's mother encourages her daughter to embrace her destiny. Meanwhile, Alex deals with a street drug that is turning people violent and giving them temporary superpowers. Written by sarah_l91

Plot Summary | Add Synopsis


TV-PG | See all certifications »






Release Date:

27 January 2019 (USA) See more »

Filming Locations:

British Columbia, Canada

Company Credits

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Technical Specs


Sound Mix:




Aspect Ratio:

16:9 HD
See full technical specs »

Did You Know?


Lena recognizes Parthas, Nia's hometown, as a word of Irish origin. Katie McGrath is herself Irish, and her native accent has briefly slipped out in several previous episodes. See more »


During the barn fight, the RV can be seen parked just before it pulls to a stop. See more »


Querl Dox: Are you okay?
Alex Danvers: Yeah. Uh, no. No, those idiots in there, they can't pass freshmen comp, and yet I couldn't crack them. Why?
Querl Dox: I don't have that answer. But I do know why our Jekylls became Hydes. The substance they ingested was radicalized by 15 to the 19th powerhertz of gamma rays.
Alex Danvers: Someone irradiated their party drug?
See more »


References Terminator 2: Judgment Day (1991) See more »

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User Reviews

For those who don't deliberately miss the point....
9 February 2019 | by josephlockettSee all my reviews

Y'know, there sure are a lot of malignant "Sons of Liberty" leaving reviews of this episode....

"You, too, are a hero." That's been the ongoing message of this series. And just because a few cranks can't tell a hero from a villain, or think their own hate is more important than others' love, doesn't make that credo any less true.

"I have faith that the love between two sisters will prevail in the end." And so it has, in this show and in this nation's history. The haters will die out, give up, or come over, and we'll keep moving ever closer to truth, justice, and the American way.

6 of 17 people found this review helpful.  Was this review helpful to you? | Report this
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