The Flash Episodes

EPISODE 1 : PILOT

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 members, Caitlin Snow and Cisco Ramon, 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.  Thrilled with his new powers, Barry learns how to control them with the help of Dr. Wells and his team.  However, keeping his secret from his best friend Iris is proving to be harder than he thought, especially when Joe’s new partner, Eddie Thawne, catches her eye.  When another meta-human attacks the city, it’s time to put Barry’s new powers – and himself – to the test.

EPISODE 2 : FASTEST MAN ALIVE

Barry escorts Iris to a university gathering honoring scientist Simon Stagg.  When six gunmen storm the event, Barry changes into The Flash and tries to stop them.  While he does save a man’s life, he passes out before he can capture the robbers, which frustrates him.  As Dr. Wells, Caitlin and Cisco scramble to find out what’s wrong with Barry, Joe comes down hard on Barry for taking the law into his own hands and risking his life.  Barry realizes that it wasn’t six gunmen but a metahuman named Danton Black, who can make multiples of himself.  Meanwhile, Iris becomes even more intrigued by the “red streak.”

EPISODE 3 : THINGS YOU CAN’T OUTRUN

As Barry and the team at S.T.A.R. Labs work to capture Kyle Nimbus, a.k.a. The Mist, a dangerous new meta-human with toxic gas powers, they revisit the painful night the particle accelerator exploded and killed Caitlin’s fiancé, Ronnie Raymond.  Meanwhile, Joe decides to finally visit Henry in jail after all these years, but things take a dangerous turn when Kyle shows up looking to punish Joe for arresting him years ago.  Meanwhile, Iris and Eddie continue to hide their relationship from Joe.

EPISODE 4 : GOING ROGUE

The Flash stops a robbery but the culprits get away after shooting a guard, and The Flash chooses to save the man instead of following the criminals.  Joe shows Barry a book of suspects and Barry identifies Leonard Snart as the leader of the group.  Snart revises his plan to steal the Kahndaq Dynasty Diamond and gets a boost when he gets his hands on a stolen “cold gun,” which could kill The Flash.  Dr. Wells is furious when he finds out that Cisco built the cold gun without telling anyone, and now it’s missing.  Meanwhile, Iris is getting the silent treatment from Joe because of her relationship with Eddie.  Finally, The Flash and Captain Cold (aka Snart) have an epic confrontation.

EPISODE 5 : PLASTIQUE

After a bomb goes off downtown, the army, led by General Eiling, rolls in and takes over the case, much to Joe’s surprise.  Suspicious, Joe tells Barry that he and his friends at S.T.A.R. Labs should look into the army’s involvement.  Wells informs the team that Eiling was experimenting on his men to turn them into super soldiers.  Cisco confirms one of Eiling’s soldiers, Bette Sans Souci, was at the bomb site.  The Flash tracks her down and realizes that she’s not setting off the bombs: she is a meta-human who can blow things up just by touching them.  Meanwhile, when Joe learns Iris is writing about “the streak,” he tells Barry to make her stop.  Barry realizes Iris won’t listen to him so he decides to have The Flash pay her a visit.

EPISODE 6 : THE FLASH IS BORN

The Flash faces a new meta-human named Tony, who can turn himself into girded steel at will.  While Dr. Wells and Caitlin are concerned about Barry’s safety, Cisco comes up with a plan to take Tony (aka DC Comic villain Girder) down.  Meanwhile, Iris’s blog on The Flash gets her into trouble, and Eddie witnesses Tony’s abilities firsthand and begins to ask questions that Joe doesn’t want answered.  Joe asks Dr. Wells to help him solve Nora Allen’s murder.

EPISODE 7 : POWER OUTAGE

The Flash goes up against Farooq aka Blackout, a meta-human who can harness electricity.  During their battle, Farooq zaps The Flash and siphons all his electricity, leaving The Flash without his speed.  Dr. Wells, Caitlin and Cisco work to reverse the effects on Barry, but their efforts are disrupted when Farooq comes banging on S.T.A.R. Labs doors in search of Wells, who he blames for his accident.  Without Barry’s powers to protect them, the group must figure out a way to save themselves from the meta-human.  Meanwhile, Tockman manages a coup inside the Central City police department and takes several people hostage, including Joe and Iris.  While Iris is sure The Flash will save them, Eddie has a trick up his sleeve.

EPISODE 8 : FLASH VS ARROW

In the first part of the epic crossover event with The Flash and Arrow, Barry is thrilled when Oliver, Felicity and Diggle come to Central City to investigate a case involving a deadly boomerang.  Excited about teaming up with his friend, Barry asks Oliver if he’d like to help him stop Roy Bivolo, the meta-human Barry is currently tracking.  Bivolo causes people to lose control of their emotions and has been using that skill to rob banks.  Unfortunately, the superhero partnership doesn’t go as smoothly as Barry expected.  When Oliver tells Barry he still has a lot to learn, Barry sets out to prove him wrong by attempting to stop Bivolo alone.  However, when Bivolo infects Barry and sets him on a raging rampage, everyone is in danger, and the only one who can stop him is the Arrow.  Meanwhile, Iris is furious when Eddie tries to get a task force to stop The Flash; and Joe and Dr. Wells agree the Arrow is a bad influence on Barry; and Caitlin and Cisco deal with a new team in S.T.A.R. Labs.

EPISODE 9 : THE MAN IN THE YELLOW SUIT

Barry finds himself face-to-face with his nemesis, the Man in the Yellow Suit, a.k.a. Reverse Flash, who killed his mother.  Barry is frustrated when the Reverse Flash escapes, but Dr. Wells and Cisco come up with a plan to trap him.  All they need is bait, so they turn to Dr. Tina McGee from Mercury Labs to help.  Meanwhile, it’s Christmas at the West household and Iris is in full holiday cheer.  Eddie gives her a surprising gift but also leaves her with a question that could change her life.  Joe joins the search for the Man in Yellow and ends up in the crossfire.  And Caitlin finds Ronnie.

EPISODE 10 : REVENGE OF THE ROGUES

Leonard Snart returns to Central City with a new hotheaded partner in tow – Mick Rory (aka Heat Wave).  The duo plan to steal a multi-million dollar painting, but Cold has another agenda while in town – to set a trap for The Flash.  Snart and Mick kidnap someone close to The Flash and threaten to kill them unless The Flash shows up for a battle of fire and ice.  Barry tells Joe he isn’t sure he should take on Snart again after the casualties that happened the last time they fought.  Meanwhile, Barry asks Dr. Wells, Caitlin and Cisco to help him double his training efforts so he’s ready for the Reverse Flash when he returns to Central City.  Iris deals with the aftermath of Barry’s confession, and Cisco makes the CCPD a new shield.

EPISODE 11 : THE SOUND AND THE FURY

Dr. Wells’ former co-worker, Hartley Rathaway, returns to seek revenge on his mentor after being affected by the particle accelerator explosion.  Now able to manipulate sound waves, the brilliant Rathaway is a dangerous threat to both Wells and The Flash.  Meanwhile, Iris is thrilled when she’s hired by the Central City Picture News as their newest cub reporter.  Unfortunately, her editor pairs her with a veteran reporter, Mason Bridge, who wants nothing to do with her.  Cisco recalls his first day on the job at S.T.A.R. Labs when he met Hartley and Caitlin.  Joe asks Eddie for a favor, but asks him to keep it a secret from Barry.

EPISODE 12 : CRAZY FOR YOU

Caitlin decides that she and Barry need to move on from Ronnie and Iris and find new loves so she takes him for a night out at the local karaoke bar.  Caitlin doesn’t have any luck making a love connection but Barry meets Linda Park, a sports reporter for the Central City Picture News, and asks her out on a date.  When Barry tells Iris he has a date, Iris is surprised by her reaction.  Meanwhile, Cisco considers Hartley’s dangerous offer and the team searches for Shawna, a meta-human with teleportation powers, who just busted her boyfriend Clay out of Iron Heights.  When Henry snoops around in an attempt to help Joe and Barry solve the crime, he ends up in the infirmary after getting roughed up by inmates.

EPISODE 13 : THE NUCLEAR MAN

After Ronnie attacks a physicist, Barry and the team realize they need to go after Caitlin’s fiancé who is now a dangerous meta-human.  They deduce the best way to track Ronnie is to find Dr. Martin Stein who was working on a project called F.I.R.E.S.T.O.R.M.  Barry struggles to balance his duties as The Flash and his relationship with Linda Park, and Joe enlists Cisco’s help to reinvestigate the murder of Nora Allen.  General Eiling returns to Central City.

EPISODE 14 : FALLOUT

After the nuclear explosion separates Ronnie and Dr. Stein, Barry and the team believe both men are safe.  Caitlin is thrilled to have her fiancé back and prepares to resume their life together while Dr. Stein returns to his wife.  However, when General Eiling targets Firestorm, Ronnie and Dr. Stein must decide if they are safer together or apart.  Meanwhile, Mason Bridge tells Iris that there is something secretive going on at S.T.A.R. Labs and Dr. Stein gives Barry some important information about time travel.

EPISODE 15 : OUT OF TIME

Mark Mardon aka The Weather Wizard appears in Central City intent on avenging his brother Clyde’s death, and sets his sights on Joe, who shot Clyde.  When Mardon attacks Joe and Barry, Barry is able to super-speed them to safety but Mardon gets away.  Barry warns Joe not to go after a meta-human alone but Joe doesn’t listen and ends up in grave danger.  Meanwhile, Cisco looks into the night the team captured the Reverse Flash and realizes something doesn’t add up and begins to wonder whether Joe was right about Dr. Wells.  Barry and Linda end up on an awkward double date with Eddie and Iris.

EPISODE 16 : ROGUE TIME

The Flash learns that Captain Cold and Heat Wave have returned to Central City.  This time, however, Snart has brought along his baby sister Lisa to help wreak havoc on the city.

EPISODE 17 : TRICKSTERS

A copycat killer who goes by the name “The Trickster” starts setting off bombs in Central City.  In order to stop the villain, Barry and Joe meet with the original Trickster, a criminal mastermind named James Jesse, who has been imprisoned for 20 years.  Things quickly go from bad to worse when the Tricksters unite and take Henry prisoner.  Meanwhile, Iris asks Eddie for help with a case, and flashbacks show how Harrison Wells came up with the idea for the particle accelerator.

EPISODE 18 : ALL STAR TEAM UP

Barry is surprised when Felicity Smoak arrives from Starling City along with her boyfriend, Ray Palmer, who flies in as the A.T.O.M.  They’ve come to visit S.T.A.R. Labs as Ray needs help with his suit.  Their timing turns out to be fortuitous because it’s all hands on deck after a meta-human named Brie Larvin unleashes hundreds of robotic bees to attack and kill her former co-workers, including Dr. Tina McGee.  A group dinner with Barry, Felicity, Ray, Iris and Eddie turns into a disaster.

EPISODE 19 : WHO IS HARRISON WELLS

Joe and Cisco head to Starling City to continue their investigation of Dr. Wells.  While in town, the duo enlists the help of Captain Lance, and Cisco meets the Black Canary, who asks him for a favor.  Meanwhile, back in Central City, Barry races to catch a meta-human named Hannibal Bates who can transform himself into every person he touches – including Eddie, Iris, Caitlin and even The Flash.

EPISODE 20 : THE TRAP

Barry, Caitlin, Cisco and Joe set a trap for Wells — using Cisco  as prey and putting him in grave danger.  Meanwhile, Eddie  makes a decision regarding Iris that leaves him a bit unsettled.

EPISODE 21 : GRODD LIVES

While Barry deals with the Reverse Flash’s latest threat to a  member of the group, Dr. Wells unleashes Grodd on the city in  order to distract Barry and the team.  Joe, Barry and Cisco  head down into the sewers to catch Grodd, but the gorilla  quickly gets the upper hand after he kidnaps Joe.  And Iris and  Barry have a heart to heart talk.

EPISODE 22 : ROGUE AIR

As Wells once again gets the upper hand on the S.T.A.R. Labs team, Barry realizes he needs to make a big move and reaches out to an old foe, Captain Cold, for help.  Joe and Caitlin warn Barry that Cold can’t be trusted.  True to form, Cold has his own agenda that involves the meta-humans trapped in the containment cells.  As things seem to be going from bad to worse, The Flash gets reinforcements — The Arrow and Firestorm.

EPISODE 23 : FAST ENOUGH

In the epic season one finale, Wells presents Barry with a life-altering choice, while Dr. Martin Stein and Ronnie Raymond (aka Firestorm) return to help the S.T.A.R. Labs team with this final fight.

EPISODE 1 : THE MAN WHO SAVED CENTRAL CITY

In the season one finale, the Reverse Flash is defeated by the noble sacrifice of one of Barry’s friends, however a black hole Singularity was opened up over Central City that not only threatened the city, but also might have created a gateway between worlds.

Picking up months after the Singularity attacked Central City, the season two premiere finds Barry still struggling to forgive himself for Eddie’s death.  Concerned about putting his friends in danger, Barry has pushed everyone away and has chosen to protect the city on his own.  When a meta-human named Atom Smasher attacks the city, however, Iris tells Barry that he needs to let his friends help him protect the citizens of Central City. Meanwhile, Cisco helps Joe with his Meta Task Force.

EPISODE 2 : THE FLASH OF TWO WORLDS

Jay Garrick, a mysterious man from Earth-2, appears at S.T.A.R. Labs with a dire warning about an evil speedster named Zoom, who is set on destroying The Flash.  Barry and the team must decide if they can trust this stranger, even as they face yet another powerful meta-human.  Meanwhile, Joe must deal with a determined officer named Patty Spivot who wants to join his meta-human task force.

EPISODE 3 : FAMILY OF ROGUES

When Barry and the team find out Captain Cold has been kidnapped, they form an uneasy alliance with his sister, Lisa.  However, Barry feels double-crossed when he finds out Snart is working with his father, Lewis Snart on a heist.  Meanwhile, Joe is faced with a difficult decision.

EPISODE 4 : THE FURY OF FIRESTORM

Barry and the team look for another Firestorm match for Dr. Stein.  When the team meets Jefferson “Jax” Jackson, Caitlin has her reservations about whether Jax is the right match for Dr. Stein.  Iris surprises Joe while Barry and Patty grow closer.

EPISODE 5 : THE DARKNESS AND THE LIGHT

Barry learns a new breacher, Dr. Light, has come through the portal and sets off to capture her.  Jay tells Barry that Dr. Light was not a threat on Earth-2 and that Barry can reason with her.  However, during a fight with The Flash, she blinds him and drops some shocking news about Zoom.  Meanwhile, Barry and Patty go out on a date.

EPISODE 6 : ENTER ZOOM

After recent events, Barry decides it’s time to confront Zoom and comes up with a dangerous plan.  Caitlin sides with Jay and deems it too dangerous for Barry to engage with the speed demon.  However, Iris shows her support and brings forth a surprising ally.  We see what Earth Two Harrison Wells’s life was like before coming through the breach.

EPISODE 7 : GORILLA WARFARE

When Gorilla Grodd returns to Central City and kidnaps Caitlin, Barry and the team race to find her before it’s too late.  Meanwhile, Cisco plans his first date with the new barista at Jitters, Kendra Saunders and Patty begins to suspect Barry is hiding something from her.

EPISODE 8 : LEGENDS OF TODAY

In its second major crossover event with Arrow, Vandal Savage arrives in Central City and sets his sights on Kendra Saunders.  After Vandal attacks Kendra and Cisco, they turn to Barry for help.  Realizing how dangerous Vandal is, Barry takes Kendra to Star City and asks Oliver and the team to hide her until he can figure out how to stop Vandal.  However, things quickly go from bad to worse when a man with wings AKA Hawkman shows up and flies off with Kendra.  Meanwhile, Harrison develops a serum to make Barry run faster and asks Jay to test it out.

EPISODE 9 : RUNNING TO A STAND STILL

When Mark Mardon aka The Weather Wizard returns to break Leonard Snart aka Captain Cold and James Jesse AKA The Trickster out of Iron Heights, Barry must stop these rogues from taking over Central City during Christmas.  Meanwhile, Joe and Iris meet Wally West.

EPISODE 10 : POTENTIAL ENERGY

Now that they’ve grown closer, Barry considers telling Patty that he is The Flash.  Meanwhile, Joe and Iris try to get to know Wally; and the team hunts down a meta-human who can slow time itself.

EPISODE 11 : THE REVERSE FLASH RETURNS

When Cisco gets a vibe of Eobard Thawne, Barry and the team don’t believe it.  But, after an attack at Mercury Labs, Christina McGee confirms that the Reverse-Flash is back.  Meanwhile, Iris and Francine share a nice moment that brings Iris closer to her brother, Wally.

EPISODE 12 : FAST LANE

Barry teams up with Wells to figure out a way to close the breaches, but they are distracted by a meta-human nicknamed Tar Pit who can transform into liquid asphalt.  Iris is concerned for Wally’s safety after she finds out about his drag racing hobby.  When he refuses to stop, she makes a bold move that puts her in danger.

EPISODE 13 : WELCOME TO EARTH 2

Barry, Wells and Cisco journey to Earth-2 to rescue Wells’ daughter, Jesse from Zoom.  Although Barry’s stunned when he runs into Earth-2’s Iris and Joe, nothing prepares him for meeting Killer Frost and Deathstorm. Meanwhile, back on Earth-1, Jay has to take over the Flash’s responsibilities when a meta-human nicknamed Geomancer attacks Central City.

EPISODE 14 : ESCAPE FROM EARTH 2

In the exciting conclusion to their Earth-2 journey, the team races to find Zoom’s lair by asking for help from the most unexpected source on Earth-2.  Meanwhile, back on Earth-1, Caitlin rushes to perfect Velocity-9 so that Jay can stop Geomancer.

EPISODE 15 : KING SHARK

When King Shark escapes from an A.R.G.U.S. holding tank, Lila Michaels and John Diggle travel to Central City to warn The Flash, but unfortunately King Shark shows up at the West house and attacks Joe, Iris, Wally and Barry.

EPISODE 16 : TRAJECTORY

Deciding to blow off some steam, Barry and the team head out for a night on the town only to encounter an unexpected speedster who is up to no good.  Iris is challenged by an assignment from her new boss, and is surprised when friction turns to flirtation.

EPISODE 17 : FLASH BACK

After the shocking revelation that Zoom is Jay Garrick, Barry is more determined than ever to get back to Earth-2 to stop Zoom forever.  Desperate to find a way to increase his speed, Barry decides to travel back in time and masquerade as his earlier self in order to get his arch-nemesis, Dr. Harrison Wells/Eobard Thawne, to teach him how to run faster.   However, things don’t go as planned and Barry is stunned to face familiar foe Hartley Rathaway, as well as old friend Eddie Thawne.  Iris makes peace with her past in order to embrace her future.

EPISODE 18 : VERSUS ZOOM

Equipped with the tachyon device, Barry believes he is fast enough to stop Zoom and wants to open the breaches to catch him.  Harry strongly advises against that plan but after Barry convinces him, Harry reveals that Cisco has the power to re-open the breach.  Meanwhile, Hunter Zolomon’s painful story on Earth-2 is revealed.

EPISODE 19 : BACK TO NORMAL

A meta-human with super strength named Griffin Grey mistakes Harry for Earth-1’s Harrison Wells and kidnaps him, demanding that Wells cure him from his current condition.  Realizing that another brilliant Wells could help track Griffin’s location, Barry asks Jesse to help.  Meanwhile, Wally corners Joe about The Flash.

EPISODE 20 : RUPTURE

Zoom arrives back on Earth-1 intent on taking over Central City.  Barry and Wells come up with a plan to stop Zoom once and for all but it’s extremely dangerous.  Unsure if he should take the risk, Barry reaches out to both fathers for advice.  Henry is adamantly opposed to Barry risking his life again but Joe thinks he can handle it – which puts the two men at odds with each other.  Meanwhile, Cisco is shocked when he vibes the Earth-2 villain Rupture, who happens to be his brother Dante’s doppelganger.  Rupture came to this Earth seeking justice for Reverb’s death.  Iris decides she’s finally ready to open up to Barry about her feelings for him.

EPISODE 21 : THE RUNAWAY DINOSAUR

With Barry gone, the team must figure out a way to handle the return of an old enemy – Girder.  Realizing Girder is retracing his steps from his last attack, Iris volunteers to act as bait to trap him in S.T.A.R. Labs.  Meanwhile, Barry fights to return to his old life.  Kevin Smith directs.

EPISODE 22 : INVINCIBLE

After Zoom unleashes an army of Earth-2 meta-humans on Central City, Barry is shaken when he sees their leader is the Black Canary’s Earth-2 doppelganger, the Black Siren.  Meanwhile, Wally takes to the streets to help The Flash stop the meta-humans, which worries Joe.  Iris and Henry are concerned about Barry taking on Zoom.

EPISODE 23 : THE RACE OF HIS LIFE

In the Season Two finale, Zoom reveals his true plan and Barry vows to do whatever it takes to stop him.

EPISODE 1 : FLASHPOINT

In the race of his life, Barry ultimately got the upper hand against Zoom and defeated his nemesis. But unable to celebrate victory, Barry made a world-shaking decision and sped back in time to the night his mother died to stop The Reverse Flash from killing her, irrevocably changing his past and determining his future anew.

What would you sacrifice to have everything you’ve ever wanted?  In the season three premiere 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.  However, when Barry starts forgetting parts of his old life, the Reverse-Flash taunts his nemesis, warning him that there will be serious repercussions for Barry and those 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.

EPISODE 2 : PARADOX

Barry realizes the effects from Flashpoint are much greater than he thought.  Meanwhile, Barry meets his new co-worker, Julian Albert and is surprised by Julian’s immediate disdain for him.

EPISODE 3 : MAGENTA

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, but he’s 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.

EPISODE 4 : THE NEW ROGUES

Barry continues to train Jesse 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 Leonard Snart (recurring guest star WENTWORTH MILLER) to even a score.  Jesse is quick to join the chase but defies one of Barry’s orders, resulting in disastrous consequences.

EPISODE 5 : MONSTER

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.

EPISODE 6 : SHADE

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.

EPISODE 7 : 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.  Kevin Smith directs.

EPISODE 8 : INVASION!

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.