CW DC Synopses November 6-9

The CW has released descriptions for the Arrowverse shows airing in three weeks.

Supergirl "Damage"

MORGAN EDGE SETS HIS SIGHTS ON LENA — When multiple children get sick from lead poisoning, Morgan Edge (guest star Adrian Pasdar) points the finger at Lena (Katie McGrath) and blames her creation of the lead bomb she made to save National City from the Daxamites. While Lena knows she never intended any harm, she fears there may have been a flaw in her design, leaving her responsible. Kara (Melissa Benoist) teams up with Samantha (Odette Annable) to clear Lena’s name, but it turns out to be harder than they thought. Meanwhile, Alex (Chyler Leigh) and Maggie (guest star Floriana Lima) make a crucial decision about the future of their relationship. Kevin Smith directed the episode written by Eric Carrasco & Cindy Lichtman (#305). Original airdate 11/6/2017.

The Flash "Girls Night Out"

KATEE SACKHOFF (“BATTLESTAR GALACTICA”) AND EMILY BETT RICKARDS (“ARROW”) GUEST STAR — Having received an ominous threat from her old boss, Amunet (guest star Katee Sackhoff), Caitlin (Danielle Panabaker) fears that her past time as Killer Frost may be back to haunt her. Felicity (guest star Emily Bett Rickards) comes to Central City to help the girls celebrate Iris’s (Candice Patton) bachelorette party, while Cisco (Carlos Valdes), Joe (Jesse L. Martin) and the guys take Barry out for a night on the town. Laura Belsey directed the episode written by Lauren Certo & Kristen Kim (#405). Original airdate 11/7/2017.

Legends of Tomorrow "Return of the Mack"

HELPING ONE OF THEIR OWN — When Nate (Nick Zano) thinks he has found a pattern to the anachronisms, it leads the Legends to London in 1897 to hunt down a time-traveling vampire. When they arrive in London, they run into Rip (guest star Arthur Darvill), but not everyone welcomes him back so quickly, leaving Sara (Caity Lotz) to make a tough choice in the end. Amaya (Maisie Richardson-Sellers) tries to connect with Zari (Tala Ashe), but she is still struggling with being part of the team. Meanwhile, Stein (Victor Garber) discovers what Ray (Brandon Routh) and Jax (Franz Drameh) are up to and is not entirely pleased. Dominic Purcell also stars. Alexandra La Roche directed the episode written by Grainne Godfree & Morgan Faust (#305). Original airdate 11/07/2017.

Arrow "Deathstroke Returns"

SLADE RETURNS — Slade (Manu Bennett) returns and asks Oliver (Stephen Amell) for help in tracking down his son. When they learn Joe (guest star William Franklyn-Miller) has been taken hostage by mercenaries, their mission to save him gets complicated by a terrible revelation that could shatter Slade’s hopes of reunion forever. Meanwhile, Vigilante reappears in Star City. Joel Novoa directed the episode written by Ben Sokolowski & Spiro Skentzos (#605). Original airdate 11/9/2017.