Elongated Journey Into Night: 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.
Series: The Flash Season 4 Episode 4
Air Date: Tuesday, October 31, 2017
Time Slot: 8:00 PM-9:00 PM EST on The CW