CW DC Synopses October 30 - November 2

Here are the descriptions for Arrowverse shows airing three weeks from now.

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 (#304). Original airdate 10/30/2017.

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 (404). Original airdate 10/31/2017.

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 (304). Original airdate 10/31/2017.

Arrow "Reversal"

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 (#604). Original airdate 11/2/2017.