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23 Episodes 2015 - 2016
Episode 1
Tue, Oct 6, 201543 mins
With the singularity destroyed, Central City wants to honor The Flash, but the ultimate sacrifices made by others haunts Barry, who retreats from the company of all those who were once close. When the radiation-absorbing meta-human Atom Smasher threatens the city, Barry goes it alone, not realizing he's also being stalked. In defeat, Dr. Wells leaves Barry a parting gift.

Episode 2
Tue, Oct 13, 201542 mins
A mysterious man brings warning of an evil speedster intent on destroying The Flash, and a determined officer wants to join Joe's meta-human task force.
Episode 3
Tue, Oct 20, 201543 mins
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 Snart working with his father, Lewis Snart, on a heist. Meanwhile, Joe is faced with a difficult decision.

Episode 4
Tue, Oct 27, 201542 mins
Barry and the team look for another Firestorm match for Dr. Stein. When they turn up two candidates, Caitlin unmistakably prefers research scientist Dr. Henry Hewitt over ex-football-quarterback-turned-mechanic Jefferson Jackson, but in finding a proper match, a new meta-villain is born. Meanwhile, with a shark-man suggestively at large in the city, Joe coaches Iris in meeting her ex-addict mom, Barry in pursuing his growing attraction towards a police colleague, and Patty in keeping a break-in perp's identity away from Barry.
Episode 5
Tue, Nov 3, 201542 mins
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
Tue, Nov 10, 201542 mins
Wells wants to lure Zoom to Barry's Earth so they can deal with him. He wants Dr. Light to help them. She agrees but escapes before they can put the plan in motion, so they turn to Light's counterpart, Linda Park, to help them. She is afraid but she agrees to help.
Episode 7
Tue, Nov 17, 201542 mins
Barry's team races to rescue Caitlin when Grodd abducts her; Cisco plans a date with the new barista at Jitters; Patty knows Barry is hiding something.

Episode 8
Tue, Dec 1, 201543 mins
Despite continuous training for his next encounter with Zoom, Barry's speed ceases to improve. Harrison has only one resort left, a serum he once tried to develop for Jay (The Earth-2 Flash). With Caitlin's help he succeeds, but Jay resolutely warns against its use. Meanwhile, Egyptian immortal Vandal Savage comes to Central City to slaughter the latest reincarnation of warrior priestess Chay-Ara, known to Cisco as his girlfriend Kendra. Barry solicits team Arrow's help in protecting her while he as The Flash, alongside Green Arrow, find dealing with the Egyptian deity difficult.

Episode 9
Tue, Dec 8, 201542 mins
When Mark Mardon/The Weather Wizard returns to break Leonard Snart/Captain Cold and James Jesse/The Trickster out of Iron Heights Prison, Barry must stop these rogues from making a horror out of Christmas in Central City. Meanwhile, Iris makes the difficult decision to tell Joe about the son he never knew he had, and Dr. Wells finds himself pressured into joining a unsavory coalition with Zoom.
Episode 10
Tue, Jan 19, 201642 mins
Barry and the S.T.A.R. Labs team hunt down The Turtle, who steals kinetic energy. Barry faces a choice on whether or not he should reveal his secret identity to Patty.
Episode 11
Tue, Jan 26, 201642 mins
Harry deduces the key to triggering Cisco's ability to vibe. The Reverse Flash has returned and kidnaps Tina McGee to help him return to the future. Iris learns that her mother doesn't have long to live. Barry must choose between vengeance and the life of one of Team Flash.

Episode 12
Tue, Feb 2, 201642 mins
Barry tries to team up with Dr. Harrison but finds out Harrison prefers working alone. The Flash fights a new meta-human. Iris researches her brother's drag racing. Dr. Harrison starts stealing Barry's speed.

Episode 13
Tue, Feb 9, 201642 mins
Barry, Wells and Cisco journey to Earth-2 to rescue Wells' daughter, Jesse.

Episode 14
Tue, Feb 16, 201641 mins
With Barry Zoom's prisoner, Wells and Cisco need to find him, so they turn to Barry's counterpart and, along with Iris, try to find him by asking Killer Frost. In Zoom's prison, Barry meets Wells' daughter, Jesse, and they try to work together to get out. Back on Earth-1, Caitlin tries to perfect the Velocity formula so she can restore Jay's speed. When the Geomancer returns, they try to deal with him.

Episode 15
Tue, Feb 23, 201642 mins
When King Shark escapes from an A.R.G.U.S. holding tank, Lyla and Diggle travel to Central City to warn The Flash. King Shark shows up at the West house and attacks Joe, Iris, Wally and Barry.

Episode 16
Tue, Mar 22, 201642 mins
Trajectory arrives in town intent on creating maximum chaos. Trajectory's antics are misinterpreted as having been perpetrated by The Flash himself. Barry must thus act quickly to uncover the mystery of who is causing damage, so others do not think it is him, and what may be driving her mad desire for speed and destruction.

Episode 17
Tue, Mar 29, 201642 mins
After the shocking revelation of Zoom's real identity, 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 do not 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
Tue, Apr 19, 201642 mins
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 the plan. The team also figures that Cisco has the power to re-open the breach. Also, Hunter Zolomon's painful backstory is revealed.

Episode 19
Tue, Apr 26, 201642 mins
Griffin Grey, a meta-human with super strength, mistakes Harry for Earth-1 Harrison Wells and kidnaps him, demanding that Wells cure him of his current condition. Realizing another brilliant Wells could track Griffin's location, Barry asks Jesse to help. Meanwhile, Wally corners Joe about The Flash.

Episode 20
Tue, May 3, 201642 mins
When Zoom arrives back on Earth-1 with the villain Rupture, Barry and Wells come up with a very dangerous plan to stop them forever.

Episode 21
Tue, May 10, 201642 mins
Iris volunteers to act as the bait in a plan to trap Girder in S.T.A.R. Labs; Barry struggles to go back to his old life.

Episode 22
Tue, May 17, 201642 mins
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
Tue, May 24, 201640 mins
After Zoom reveals his true plan, Barry vows to do whatever it takes to stop him.
