Season 3 Episodes
Barry is living his dream life—his parents are alive, he’s asked Iris West on a date and he can finally be a normal guy as Central City has another speedster, Kid Flash, running around saving the city. When Barry starts forgetting parts of his old life, the Reverse Flash (guest star Matt Letscher) taunts his nemesis and tells him that there will be serious repercussions for Barry and the ones he loves if he continues to live in this alternate universe. In addition to losing his memories, his powers will also start to fade. When disaster strikes, Barry must decide if he wants to continue to live in this world as Barry Allen or return to his universe as The Flash.
Barry realizes the effects from Flashpoint are much greater than he thought. Meanwhile, Barry meets new co-worker Julian Albert and is surprised by Julian’s immediate disdain for Barry.
Barry and Team Flash are thrilled to reunite with Earth-2 Wells and Jesse (guest star Violett Beane). Wells confides to Barry and Caitlin that Jesse has all the powers of a speedster and has been saving people on his Earth. He is concerned about her safety and wants them to talk her out of using her powers. Meanwhile, Magenta (guest star Joey King), a new meta who can control metal, terrorizes the city.
04: The New Rogues
Barry continues to train Jesse (guest star Violett Beane); and when a new meta human, Mirror Master (guest star Grey Damon), appears on the scene he lets her tag along. Mirror Master has teamed up with his old partner, Top (guest star Ashley Rickards), and is looking for Snart to even a score. Jesse is quick to join the chase but defies one of Barry’s orders which results in disastrous consequences.
Desperate to understand what is happening to her, Caitlin visits her mother, Dr. Tannhauser (guest star Susan Walters), a renowned biomedical researcher, in the hopes that her mother can provide some answers about Caitlin’s growing meta-human powers. However, when Dr. Tannhauser treats her daughter like a test subject, Caitlin grows cold and brings up past wounds causing the two to have a major blowout. Meanwhile, after a mysterious new meta-human attacks Central City, Barry tries to convince Julian to let him assist on the case.
When Wally starts having dreams about being Kid Flash, Barry realizes he has to tell Wally, Iris and Joe about what happened to Wally in Flashpoint in order to keep him safe.
07: Killer Frost
Caitlin uses her powers to save Barry, but as her mother predicted the effort unleashes her inner Killer Frost. Killer Frost goes on a rampage looking for Dr. Alchemy, kidnapping Julian and battling both The Flash and Vibe. Meanwhile, Joe and H.R. have a heart to heart talk.
When aliens called the Dominators attack Central City, Barry speeds over to Star City to ask the Green Arrow (guest star Stephen Amell) for help in stopping them. Realizing the battle against the Dominators is bigger than they thought, they track down the Legends of Tomorrow, and Barry and Cisco create a breach to bring back a secret weapon—Supergirl (guest star Melissa Benoist). Once all of the super friends are assembled, they come up with a plan to attack, but a shocking secret related to Flashpoint is revealed and suddenly no one is sure who they can trust. Meanwhile, Wally wants to join the battle against the aliens, but Iris tells him he’s not ready.
09: The Present
With Alchemy and Savitar still looming threats, Barry is unable to focus on the Christmas holiday and especially his relationship with Iris. Determined to stop Savitar, Barry goes to Earth-3 to get advice from Jay Garrick (guest star John Wesley Shipp). Wally wants to help Barry fight Savitar and reveals that he’s been training with H.R., which doesn’t go over well with Barry. As Cisco faces his first Christmas without his brother Dante (guest star Nicholas Gonzalez), old wounds are reopened.
10: Borrowing Problems from the Future
Barry is tormented by his vision of the future where Iris is murdered by Savitar. When a criminal named Plunder (guest star Stephen Huszar) shows up in Central City, Barry recalls the villain’s presence in his vision of the future and fears that if he catches Plunder, it will cement Iris’ fate. Confused about Barry’s hesitation to stop Plunder, Wally decides to step in as Kid Flash. Caitlin offers Julian a job.
11: Dead or Alive
H.R.’s past catches up with him when a bounty hunter with vibe powers named Gypsy (guest star Jessica Camacho) arrives in Central City to bring him back to Earth-19 to stand trial for his crime. It turns out inter-dimensional travel is illegal on their Earth. H.R. surrenders but when Barry and Cisco find out that H.R.’s only hope would be to challenge Gypsy to a fight to the death, they intercede and Cisco offers to fight Gypsy instead.
Barry and the team at S.T.A.R. Labs work together to bring down Clive Yorkin (guest star Matthew Kevin Anderson), a criminal meta-human who is methodically killing people by causing them to decompose at an accelerated rate. Joe becomes his next target but it’s Iris who is caught in the crossfire. The Flash mentors Kid Flash and begins to elevate the newer speedster’s training to another level.
13: Attack on Gorilla City
When Jesse Quick (guest star Violett Beane) informs the team that her father has been abducted, Barry, Caitlin, Cisco and Julian voyage to Earth-2 on a rescue mission to save Harry from Gorilla City. As they trek through the forest, Barry and the team are immediately captured and brought to Grodd (voiced by David Sobolov). Grodd tells them he needs their help to stop Solovar (voiced by Keith David), the leader of Gorilla City, as Solovar wants to invade Earth-1. Meanwhile, back on Earth-1, Jesse and Kid Flash hit the streets to stop a metahuman that can control gravity, with H.R. and Joe guiding them from S.T.A.R. Labs.
14: Attack on Central City
When Grodd (voiced by David Sobolov) and his army of gorillas bring the battle to Earth-1, The Flash and team must find a way to stop them before they destroy Central City. Gypsy (guest star Jessica Camacho) returns to join the fight. Meanwhile, Jesse Quick (guest star Violett Beane) decides she wants to stay with Wally on Earth-1.
15: The Wrath of Savitar
While training with Barry, Wally starts to have visions of Savitar, which he hides from the team. A dangerous secret threatens Barry and Iris’ happiness.
16: Into the Speed Force
Desperate to stop Savitar and save his friends, Barry turns to the speed force for answers. H.R. gives Jesse (guest star Violett Beane) some advice.
Barry and team are surprised when Mon-El (guest star Chris Wood) and Hank Henshaw (guest star David Harewood) arrive on their Earth carrying a comatose Supergirl (guest star Melissa Benoist) who was whammied by the Music Meister (guest star Darren Criss). Unable to wake her up, they turn to Team Flash to save her. However, the Music Meister surprises The Flash and puts him in a similar coma, one that Team Flash can’t cure. Kara and Barry wake up without their powers in an alternate reality where life is like a musical and the only way to escape is by following the script, complete with singing and dancing, to the end.
18: Abra Kadabra
The Flash battles Abra Kadabra (guest star David Dastmalchian), a villain from Earth-19 who makes him a tempting offer—release him and Abra Kadara will reveal Savitar’s true identity. Desperate to save Iris, Barry considers taking the deal; but Gypsy (guest star Jessica Camacho) breaches in to capture the villain for her own reasons, and during the melee Abra Kadabra manages to escape. Barry is furious that Gypsy interfered, but Gypsy refuses to back down, forcing Cisco to take sides. Meanwhile, Julian is still a bit cold towards Caitlin, but when she is severely injured in a battle with Gypsy, he rushes to her side.
19: The Once and Future Flash
Barry travels to the future to find out Savitar’s still unknown identity in the hopes of saving Iris. Upon his arrival in 2024, Barry encounters future versions of his Team Flash friends, who, following the death of Iris, have become very different people, profoundly impacted by their showdown with Savitar. It will be up to Barry to infuse a sense of hope back into the team, as he proves to be the hero his future friends have been waiting for. Meanwhile, back in 2017, the hunt for Killer Frost continues.
20: I Know Who You Are
Barry and the team meet Tracy Brand (guest star Anne Dudek), a scientist who may be the key to stopping Savitar. Unfortunately, Killer Frost is also after Tracy, so Team Flash must battle their old friend, which proves to be particularly difficult for Cisco. Joe and Cecile’s (guest star Danielle Nicolet) relationship takes a big turn.
21: Cause and Effect
Barry takes drastic measures to stop Savitar. Meanwhile, H.R. continues to push Tracy Brand (guest star Anne Dudek) to design the trap for Savitar, and Killer Frost returns with an interesting proposal.
22: Infantino Street
With only 24 hours left until Savitar murders Iris, Barry struggles to save the woman he loves and makes the choice to use any means necessary to do so. Realizing he has one option left to save her, The Flash turns to Captain Cold for help.
23: Finish Line
With nothing left to lose, Barry takes on Savitar in an epic conclusion to season three.