With the fall TV season fast approaching, The CW Network has released a first look video that includes footage from new programs The Flash, debuting Tuesday, October 7, and the mid-season series IZombie, which doesn't have a premiere date set at this time.

This video also includes new scenes from the rest of CW's lineup, including Arrow, Supernatural, The Vampire Diaries, The Originals and many more.

Barry Allen was just 11 years old when his mother was killed in a bizarre and terrifying incident and his father was falsely convicted of the murder. With his life changed forever by the tragedy, Barry was taken in and raised by Detective Joe West, the father of Barry's best friend, Iris. Now, Barry has become a brilliant, driven and endearingly geeky CSI investigator, whose determination to uncover the truth about his mother's strange death leads him to follow up on every unexplained urban legend and scientific advancement that comes along. Barry's latest obsession is a cutting edge particle accelerator, created by visionary physicist Harrison Wells and his S.T.A.R. Labs team, who claim that this invention will bring about unimaginable advancements in power and medicine. However, something goes horribly wrong during the public unveiling, and when the devastating explosion causes a freak storm, many lives are lost and Barry is struck by lightning. After nine months in a coma, Barry awakens to find his life has changed once again - the accident has given him the power of super speed, granting him the ability to move through Central City like an unseen guardian angel. Though initially excited by his newfound powers, Barry is shocked to discover he is not the only "meta-human" who was created in the wake of the accelerator explosion - and not everyone is using their new powers for good. In the months since the accident, the city has seen a sharp increase in missing people, unexplained deaths and other strange phenomena. Barry now has a renewed purpose - using his gift of speed to protect the innocent, while never giving up on his quest to solve his mother's murder and clear his father's name. For now, only a few close friends and associates know that Barry is literally the fastest man alive, but it won't be long before the world learns what Barry Allen has become...The Flash. The series stars Grant Gustin (Glee, Arrow) as Barry Allen/The Flash, Candice Patton (The Game) as Iris West, Rick Cosnett (The Vampire Diaries) as Eddie Thawne, Danielle Panabaker (Necessary Roughness, Justified) as Caitlin Snow, Carlos Valdes (Once on Broadway ) as Cisco Ramon, with Tom Cavanagh (Ed, Eli Stone) as Harrison Wells and Jesse L. Martin (Law & Order) as Detective West. The Flash is produced by Bonanza Productions Inc. in association with Berlanti Productions and Warner Bros. Television, with executive producers Greg Berlanti (Arrow, The Tomorrow People, Green Lantern), Andrew Kreisberg (Arrow, Eli Stone), David Nutter (Arrow, Game of Thrones) and Sara Schechter. The pilot was directed by David Nutter. This series is based upon characters published by DC Entertainment.

Olivia "Liv" Moore was a rosy-cheeked, disciplined, over-achieving medical resident who had her life path completely mapped out...until the night she attended a party that unexpectedly turned into a zombie feeding frenzy. As one of the newly undead, Liv is doing her best to blend in and look as human as possible. Her appearance now passes for "Goth," with shockingly pale skin and nearly white hair, and her demeanor has gone from exuberant to exhausted. The change in Liv is baffling to her mother, her former fiancé, Major, and her best friend and roommate, Peyton, who still has the high-energy, Type-A personality that Liv has completely abandoned. Despite her post-traumatic ennui, Liv has devised a way to resist her baser urges to devour fresh human brains - she's taken a job in the Seattle coroner's office. In this appropriately dead-end job, Liv can secretly snack on the brains of the many Jane and John Doe corpses that make a final stop in the morgue. Despite carefully covering her tracks, Liv's boss, Dr. Ravi Chakrabarti, discovers her secret and is surprisingly excited about the scientific possibilities. Even with her boss' enthusiasm, Liv remains resigned to an eternity without hope or purpose, until she realizes that with every brain she consumes, she retains a portion of that person's memories. Liv begins to experience visions from the point of view of the murder victims. Much to the surprise of Dr. Ravi and homicide detective Clive Babineaux, Liv often has detailed knowledge of crime scenes and motives that she can't easily explain. Posing as a psychic, she works with Detective Babineaux to investigate these crimes and discover who is responsible. It's not the same as being alive again, but at least Liv can find purpose in her undead existence by helping Clive solve the murders of those who are indeed fully dead. The series stars Rose McIver (Masters of Sex, Once Upon a Time) as Liv, Malcolm Goodwin (Breakout Kings) as Clive Babineaux, newcomer Rahul Kohli as Dr. Ravi Chakrabarti, Robert Buckley (One Tree Hill) as Major Lilywhite, Alexandra Krosney (Last Man Standing) as Peyton Charles, David Anders (Once Upon a Time, The Vampire Diaries) as Blaine DeBeers and Nora Dunn (Entourage, Saturday Night Live) as Eva Moore. Based upon characters created by Chris Roberson and Michael Allred, and published by DC Entertainment's Vertigo imprint, IZombie is from Bonanza Productions Inc. in association with Spondoolie Productions and Warner Bros. Television, with executive producers Rob Thomas (Veronica Mars, Party Down, Cupid), Diane Ruggiero-Wright (Veronica Mars, The Ex List, That's Life), Danielle Stokdyk (Veronica Mars, Party Down, Cupid) and Dan Etheridge (The Carrie Diaries, Veronica Mars, Party Down). The pilot was directed by Rob Thomas.