The CW has released the official synopses for the episodes of Supergirl, The Flash, DC's Legends of Tomorrow, and Arrow, which will air the week of October 30.
You can check them out below.
Supergirl: "The Faithful"
CHAD LOWE GUEST STARS — Kara (Melissa Benoist) investigates a secretive new group whose leader, Thomas Coville (guest star Chad Lowe), has a mysterious connection to Supergirl.
Meanwhile, Samantha (Odette Annable) feels like she’s letting Ruby (guest star Emma Tremblay) down, and J’onn (David Harewood) confesses an old secret.
Jesse Warn directed the episode written by Paula Yoo & Katie Rose Rogers.
"The Faithful" will premiere on October 30 a 8 p.m. ET/PT.
The Flash: Elongated Journey Into Night
TOM CAVANAGH DIRECTS; DANNY TREJO GUEST STARS AS BREACHER
Cisco (Carlos Valdes) is shocked when Gypsy’s (guest star Jessica Camacho) father, Breacher (guest star Danny Trejo), shows up on Earth-1. Breacher takes an immediate disliking to Cisco and decides to hunt him.
Meanwhile, Barry (Grant Gustin) runs into his old nemesis, Ralph Dibny (guest star Hartley Sawyer).
Tom Cavanagh directed the episode written by Sterling Gates & Thomas Pound.
"Elongated Journey Into Night" will premiere on October 31 at 8 p.m. ET/PT.
DC's Legends of Tomorrow: "Phone Home"
HELPING ONE OF THEIR OWN
The Legends learn that Ray Palmer (Brandon Routh) will die because they broke time, causing them to race back to 1988 to try and save his life. When they arrive, they are surprised to learn that young Ray Palmer has befriended a time-displaced baby Dominator putting him in harm’s way with the government and the Dominator’s mother.
New to the ship and missions, Zari (Tala Ashe) must find her place and learn to trust the team. Meanwhile, Stein (Victor Garber) begins working on a secret project on the ship which makes Rory (Dominic Purcell) and Jax (Franz Drameh) suspicious.
Caity Lotz, Maisie Richardson-Sellers and Nick Zano also star. Kevin Mock directed the episode written by Matthew Maala.
"Phone Home" will debut on October 31 at 9 p.m. ET/PT.
BLACK SIREN STRIKES AGAIN
Just as Oliver (Stephen Amell) starts to get things in order, Black Siren (Katie Cassidy) launches another attack on the citizens of Star City.
Gregory Smith directed the episode written by Sarah Tarkoff & Emilio Ortega Aldrich.
"Reversal" will premiere on November 2 at 9 p.m. ET/PT on The CW.