CW Synopses January 29 - February 1

The CW has released episode descriptions for their shows airing in three weeks.

Supergirl 3x12 "For Good"

MORGAN EDGE THREATENS LENA – Someone tries to kill Morgan Edge (guest star Adrian Pasdar) and he barely survives. He accuses Lena (Katie McGrath) of being behind the attempt and vows to destroy her. When Lena fears her hatred for Morgan will take her to the Luthor dark side, Kara (Melissa Benoist) steps in to help her friend. Meanwhile, after Sam (Odette Annable) realizes she’s losing time, she confides in Alex (Chyler Leigh) who decides to run some medical tests to see if she can find out what’s going on with her new friend. Tawnia McKiernan directed the episode with story by Robert Rovner and teleplay by Cindy Lichtman & Alix Sternberg (#312). Original airdate 1/29/18.

The Flash 4x12 "Honey, I Shrunk Team Flash"

THE INCREDIBLE SHRINKING MEN — A meta who can shrink anything he touches battles Team Flash. Cisco (Carlos Valdes) and Ralph (guest star Hartley Sawyer) get caught in his crossfire and are shrunk to miniature versions of themselves. Cecile (guest star Danielle Nicolet) realizes her pregnancy has caused her to have temporary powers and discovers she can hear other people’s thoughts, which unnerves Joe (Jesse L. Martin). Meanwhile, Barry (Grant Gustin) meets someone with a mysterious connection to Henry Allen. Chris Peppe directed the episode written by Sam Chalsen & Judalina Neira (#412). Original airdate 1/30/2018.

Black Lightning 1x03 "LaWanda: The Book of Burial"

HOLDING OUT HOPE — As Jefferson Pierce (Cress Williams) tries to determine if the community can survive without the help of Black Lightning (Cress Williams), Anissa (Nafessa Williams) starts to come into her own. Meanwhile, Jefferson and Lynn (Christine Adams) try and figure out their new dynamic. Finally, Jennifer (China Anne McClain) reveals to her parents that she has been grappling with something big. James Remar, Damon Gupton and Marvin Jones III also star. The episode was written by Jan Nash and directed by Mark Tonderai (#103). Original airdate 1/30/2018.

Supernatural 13x12 "Various & Sundry Villains"

THE WITCH IS BACK – Dean (Jensen Ackles) falls victim to a couple of witches, sisters Jamie (guest star Jordan Clair Robbins) and Jennie Plum (guest star Elise Gatien), who manage to steal a powerful book of spells from the Winchester brothers. When Sam (Jared Padalecki) and Dean go after the book, they get help from a powerful and surprising ally when Rowena (guest star Ruth Connell), back from the dead, intervenes to assist them. Amanda Tapping directed the episode written by Steve Yockey (#1312). Original airdate 2/1/2018.

Arrow 6x12 "All for Nothing"

OLIVER AND DINAH FACE OFF — Oliver (Stephen Amell) continues his battle with Cayden James (guest star Michael Emerson). Dinah (Juliana Harkavy) and Oliver have a major disagreement that endangers the life of one of their own. Mairzee Almas directed the episode written by Beth Schwartz & Oscar Balderrama (#612). Original airdate 2/1/2018.