https://en.wikipedia.org/wiki/The_Flash_(2014_TV_series)


No.1 "The Man Who Saved Central City" Ralph Hemecker Story by: Greg Berlanti & Andrew Kreisberg
Teleplay by: Andrew Kreisberg & Gabrielle Stanton October 6, 2015 3J5651 3.58[25]
Ronnie and Professor Stein turn into Firestorm and destroy the singularity, but at the cost of Ronnie's life. Six months later, Barry is now working on his own to avoid hurting any more of his friends and family; Cisco works in the police department alongside Joe and his metahuman task force, and Caitlin works at Mercury Labs. The city holds a ceremony honoring the Flash for his work in saving the city. At the ceremony, Barry is attacked by Al Rothstein whose strength and size manipulation prove too much for Barry to handle on his own. He is convinced by Joe and the others that he needs help in taking down certain metahumans and Barry defeats Al by allowing him to absorb too much radiation. In his dying breath, Al tells Barry that he was sent to kill him by someone named Zoom. Barry also receives a hard drive from Dr. Wells containing his confession to killing Nora that finally proves Barry's father's innocence. They throw a party where Henry tells Barry that he is not staying in Central City, so that Barry can focus on being the Flash. A mysterious man shows up at S.T.A.R. Labs, introduces himself as Jay Garrick, and declares the world is in danger.

2 "Flash of Two Worlds" Jesse Warn Aaron Helbing & Todd Helbing October 13, 2015 3J5652 3.49[26]
Jay explains to everyone that he is the Flash on his world, a parallel Earth, and that he was in a battle with a demonic speedster named Zoom when the singularity brought him to this Earth without his powers. Dr. Stein explains to the team how Jay's story could be possible using the multiverse theory, identifying their world as "Earth-1" and Jay's as "Earth-2". Zoom arrives and brings another metahuman from his Earth, named Sand Demon, to kill Barry. The two fight, but Sand Demon escapes. Cisco analyzes "sand" left behind and has a flash of the fight between him and Barry. After Sand Demon kidnaps Officer Patty Spivot, Jay teaches Barry how to hurl lightning from the energy he creates when he runs. Cisco uses his new power to tap into the "sand" particles and find Patty's location. Barry uses the lightning blast to turn Sand Demon's particles to glass, stopping him. Later, Officer Spivot joins Joe's metahuman task force. Cisco divulges his new ability to Dr. Stein, but asks him not to tell anyone. Dr. Stein and Cisco are able to locate 52 breaches with the other Earth. While showing the team, Dr. Stein collapses into unconsciousness.
3 "Family of Rogues"[27] John F. Showalter Julian Meiojas & Katherine Walczak October 20, 2015 TBA TBD
4 "The Fury of Firestorm"[28] Stefan Pleszczynski Kai Yu Wu & Joe Peracchio October 27, 2015 TBA TBD
5 "The Darkness and the Light"[29] Steve Shill Ben Sokolowski & Grainne Godfree November 3, 2015 TBA TBD