The Flash

In the first part of the five-episode Armageddon event, Flash and the team need to enlist help to save the world when a powerful alien threat arrives on Earth.

When Despero (TONY CURRAN) warns the Flash that Armageddon will begin when he loses his mind, Barry seeks help from Black Lightning (CRESS WILLIAMS).

After things take a dire turn with Despero, Barry meets Black Lightning at the Hall of Justice. Meanwhile, Iris suspects that something is off with Despero’s vision of the future, so she seeks help from a powerful ally. JAVICIA LESLIE, CHYLER LEIGH and OSRIC CHAU guest star as Ryan Wilder, Alex Danvers and Ryan Choi.

Barry is shocked when Eobard Thawne (guest star TOM CAVANAGH) returns in the most unexpected way, and with a tie to a loved one. Meanwhile, Damien Darhk (guest star NEAL McDONOUGH) offers advice to Barry, but there is a catch. Finally, an epic battle begins with the Reverse Flash pitted against the Flash, his team, alongside Batwoman, Sentinel and Ryan Choi.

The exciting conclusion to the five-part Armageddon event presents an opportunity for The Flash to end his lifelong battle with Reverse Flash (TOM CAVANAGH) for good, but the payoff could be too much for Barry and the team to handle. Meanwhile, Mia Queen (guest star KATHERINE McNAMARA) drops in from the future looking to save a lost one... and won't let anything stand in her way.

Bart and Nora (JORDAN FISHER & JESSICA PARKER KENNEDY) must race to repair fissures in the timeline when things are not as they left them.

When a criminal invades the CCPD, Barry and Kristen Kramer must trust and rely on each other if they are going to make it out safely. Meanwhile, Caitlin learns a valuable lesson.

Barry (GRANT GUSTIN) trusts his instincts during a murder investigation, believing the suspect. Meanwhile, Iris (CANDICE PATTON) gives Allegra an opportunity to be a mentor.

Barry and Team Flash get closer to figuring out the Fire Meta, but no closer to finding him. Meanwhile, Iris, needing a distraction, follows a story to Coast City.

Barry's desire to keep Team Flash safe is tested when Frost recklessly courts danger as she tries to stop the "Black Flame." Meanwhile, Iris tries to help a teen girl reunite with her mother, but unintentionally does more harm than good.

Barry and Chester may have found a way to stop the "Black Flame" from hurting anyone else. Meanwhile, Caitlin decides to handle a situation on her own – possibly putting more innocent lives in danger.

With a new meta terrorizing the city, Joe lends a hand to the local authorities. Meanwhile, Barry gets an assist from Cecile who helps to track the mass murderer.

With Team Flash under attack, they all must fight to save not only themselves but also each other.

Team Flash uses the distraction of a bank-robbing meta to keep them from the grief of losing someone they love.

The Flash gets an assist from his daughter, XS. Meanwhile, CCPD enlists Chester to help when a mysterious device is found at a crime scene. Showrunner ERIC WALLACE directs.

The Flash gets blasted with a shockwave, forcing his body to age prematurely. CAITY LOTZ (DC's Legends of Tomorrow) directs.

The Flash goes off the grid to look for answers about a new meta in town. Meanwhile, Allegra pulls out all of the stops at CC Citizen Media, to protect a source and a friend.

With a new speedster in town, The Flash gets much more than he bargained for. Cecile's powers experience a growth spurt allowing her to aid Team Flash on a different level.

The Flash and team are in for the fight of their lives; meanwhile, Iris discovers the cause of her time sickness.

With The Flash still reeling from everything that just happened, the rest of the team rallies to support him when he needs it the most.