The CW has released the synopsis for episode #306 of Supergirl, which you can check out below. The installment, titled “Midvale,” is officially described as follows:
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ESCAPE DOWN MEMORY LANE
Kara (Melissa Benoist) and Alex (Chyler Leigh) head home to Midvale for a little R&R.
While there, Kara recalls a painful memory of a childhood friend’s death and how that traumatic experience brought the Danver sisters closer together.
Izabela Vidovic plays Young Kara and Olivia Nikkanen plays Young Alex in flashbacks.
Supergirl, “Midvale,” was directed by Rob Greenlea and by written by Caitlin Parrish and Jess Kardos. The episode airs Monday, November 13, at 8pm on The CW.