The CW released plot synopsis for their DC episodes airing the week of January 29th.
SUPERGIRL “For Good” — (8:00-9:00 p.m. ET)
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 “Honey, I Shrunk Team Flash” — (8:00-9:00 p.m. ET)
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 “Lawanda: The Book of Burial” — (9:00-10:00 p.m. ET)
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.
ARROW “All for Nothing” — (9:00-10:00 p.m. ET)
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.