The Flash Season 3 Episode 20 Promo Teases Savitar Identity Reveal

The Flash season 3 is speeding along to its conclusion, and things are getting interesting. That was quite a cliffhanger we got at the end of the most recent episode, and the season is about to solve its big mysteries.

You can read our review of "The Once and Future Flash" here.

But the trailer for The Flash Season 3 Episode 20, "I Know Who You Are" promises to reveal the mystery of Savitar's identity once and for all.

Check out the official synopsis:

Barry (Grant Gustin) travels to the future to find out Savitar’s still unknown identity in the hopes of saving Iris (Candice Patton). 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 hero his future friends have been waiting for. Meanwhile, back in 2017, the hunt for Killer Frost (Danielle Panabaker) continues.

So what's the deal with that new costume? Is this Barry's future self's costume? Or is this the one he designs when he comes back from the future and ready to hand Savitar his metal plated ass? They're gonna make us wait for the answers on this one, though. 

The Flash Season 3 Return Date

Can you believe we have to wait until April 25th to see this episode? Yeah. Neither can we.

Oh yeah, and maybe you've heard, but The Flash Season 4 is officially happening.

Watch The Flash on Amazon

And here's our episode guide to keep you all caught up...

The Flash Season 3 Episodes

If the title is in blue, then click it to go to a full review!

The Flash Season 3 Episode 1: Flashpoint

Barry (Grant Gustin) is living his dream life – his parents are alive, he’s asked Iris West (Candice Patton) on a date and he can finally be a normal guy as Central City has another speedster, Kid Flash (Keiynan Lonsdale), 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.

air date: 10/4/16

The Flash Season 3 Episode 2: Paradox

Barry (Grant Gustin) realizes the effects from Flashpoint are much greater than he thought. Meanwhile, Barry meets new co-worker Julian Albert (Tom Felton) and is surprised by Julian’s immediate disdain for Barry.

air date: 10/11/16

The Flash Season 3 Episode 3: Magenta

Barry (Grant Gustin) and Team Flash are thrilled to reunite with Earth-2 Wells (Tom Cavanagh) and Jesse (guest star Violett Beane). Wells confides to Barry and Caitlin (Danielle Panabaker) 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.

Air date: 10/18/16

The Flash Season 3 Episode 4: The New Rogues

Barry (Grant Gustin) 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 (Wentworth Miller) to even a score. Jesse is quick to join the chase but defies one of Barry’s orders which results in disastrous consequences.

Air date: 10/25/16

The Flash Season 3 Episode 5: Monster

Desperate to understand what is happening to her, Caitlin (Danielle Panabaker) 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 (Grant Gustin) tries to convince Julian (Tom Felton) to let him assist on the case.

air date: 11/1/16

The Flash Season 3 Episode 6: Shade

When Wally (Keiynan Lonsdale) starts having dreams about being Kid Flash, Barry (Grant Gustin) realizes he has to tell Wally, Iris (Candice Patton) and Joe (Jesse L. Martin) about what happened to Wally in Flashpoint in order to keep him safe.

air date: 11/15/16

The Flash Season 3 Episode 7: Killer Frost

Caitlin (Danielle Panabaker) uses her powers to save Barry (Grant Gustin) but as her mother predicted, the effort unleashes her inner Killer Frost.  Killer Frost goes on a rampage looking for Dr. Alchemy, kidnapping Julian (Tom Felton) and battling both The Flash and Vibe (Carlos Valdes).  Meanwhile, Joe (Jesse L. Martin) and H.R. (Tom Cavanagh) have a heart to heart talk.

air date: 11/22/16

The Flash Season 3 Episode 8: Invasion!

When aliens called the Dominators attack Central City, Barry (Grant Gustin) 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 (Carlos Valdes) 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 (Keiynan Lonsdale) wants to join the battle against the aliens but Iris (Candice Patton) tells him he’s not ready.

air date: 11/29/16

The Flash Season 3 Episode 9: The Present

With Alchemy and Savitar still looming threats, Barry (Grant Gustin) is unable to focus on the Christmas holiday, and especially his relationship with Iris (Candice Patton). Determined to stop Savitar, Barry goes to Earth-3 to get advice from Jay Garrick (guest star John Wesley Shipp). Wally (Keiynan Lonsdale) wants to help Barry fight Savitar and reveals that he’s been training with H.R. (Tom Cavanagh), which doesn’t go over well with Barry. As Cisco (Carlos Valdes) faces his first Christmas without his brother Dante (guest star Nicholas Gonzalez), old wounds are reopened.

air date: 12/6/16

The Flash Season 3 Episode 10: Borrowing Problems From the Future

Barry (Grant Gustin) is tormented by his vision of the future where Iris (Candice Patton) 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 (Keiynan Lonsdale) decides to step in as Kid Flash. Caitlin (Danielle Panabaker) offers Julian (Tom Felton) a job.  

air date: 1/24/16

The Flash Season 3 Episode 11: Dead or Alive

H.R.’s (Tom Cavanagh) 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 (Grant Gustin) and Cisco (Carlos Valdes) 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.

air date: 1/31/16

The Flash Season 3 Episode 12: Untouchable

Barry (Grant Gustin) 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 (Jesse L. Martin) becomes his next target but it’s Iris (Candice Patton) who is caught in the crossfire.  The Flash mentors Kid Flash (Keiynan Lonsdale) and begins to elevate the newer speedster’s training to another level.

air date: 2/7/17

The Flash Season 3 Episode 13: Attack on Gorilla City

When Jesse Quick (guest star Violett Beane) informs the team that her father (Tom Cavanagh) has been abducted, Barry (Grant Gustin), Caitlin (Danielle Panabaker), Cisco (Carlos Valdes) and Julian (Tom Felton) 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 (Keiynan Lonsdale) hit the streets to stop a metahuman that can control gravity, with H.R. and Joe (Jesse L. Martin) guiding them from S.T.A.R. Labs.

air date: 2/21/17

The Flash Season 3 Episode 14: Attack on Central City

Flash and the team must find a way to stop Grodd and his army of gorillas when Grodd brings the battle to Earth-1; Jesse Quick decides she wants to stay with Wally on Earth-1.

air date: 2/28/17

The Flash Season 3 Episode 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.

air date: 3/7/17

The Flash Season 3 Episode 16: Into the Speed Force

Desperate to stop Savitar and save his friends, Barry (Grant Gustin) turns to the Speed Force for answers.  H.R. (Tom Cavanagh) gives Jesse (Violett Beane) some advice. 

air date: 3/14/17

The Flash Season 3 Episode 17: Duet

Barry (Grant Gustin) 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.

air date: 3/21/17

The Flash Season 3 Episode 18: Abra Kadabra

The Flash (Grant Gustin) 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 (Candice Patton), 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 (Carlos Valdes) to take sides. Meanwhile, Julian (Tom Felton) is still a bit cold towards Caitlin (Danielle Panabaker) but when she is severely injured in a battle with Gypsy, he rushes to her side.

air date: 3/28/17

The Flash Season 3 Episode 19: The Once and Future Flash

Barry (Grant Gustin) travels to the future to find out Savitar’s still unknown identity in the hopes of saving Iris (Candice Patton). 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 hero his future friends have been waiting for. Meanwhile, back in 2017, the hunt for Killer Frost (Danielle Panabaker) continues.

air date: 4/25/17

The Flash Season 3 Episode 20: I Know Who You Are

Barry (Grant Gustin) and the team meet Tracy Brand (guest star Anne Dudek), a scientist, who may be the key to stopping Savitar.  Unfortunately, Killer Frost (Danielle Panabaker) is also after Tracy so Team Flash must battle their old friend, which proves to be particularly difficult for Cisco (Carlos Valdes).  Joe (Jesse L. Martin) and Cecile’s (guest star Danielle Nicolet) relationship takes a big turn.

air date: 5/2/17

The Flash Season 3 Episode 21: Cause and Effect

Barry (Grant Gustin) takes drastic measures to stop Savitar. Meanwhile, H.R. (Tom Cavanagh) continues to push Tracy Brand (guest star Anne Dudek) to design the trap for Savitar and Killer Frost (Danielle Panabaker) returns with an interesting proposal.

air date: 5/9/17

The Flash Season 3 Episode 22: TBA

air date: 5/16/17

The Flash Season 3 Finale Episode 23: TBA

air date: 5/23/17