Barry vows to stop Zoom when he learns what the latter's master plan is for Central City... and Earth One.
After his time in the Speed Force, Barry is eerily confident that the team can handle Zoom and his army of Earth Two metahumans. Meanwhile, Wally sets out to be a hero, and Cisco has ominous vibes of the future.moreless
The team tries to recover Barry from the Speed Force, only to discover that he may not want to return. Meanwhile, the second particle explosion reanimated a dead metahuman, Girder, who is obsessed with finding Iris.moreless
Zoom proceeds with his plans to conquer first Central City and then all of Earth One. Only his feelings for Caitlin stay his hand... but she betrays him. Meanwhile, Harry comes up with a risky plan to give Barry his powers back, and Iris makes a confession to Barry.moreless
A metahuman abducts Harry, believing that he's the Harrison Wells who gave him his powers... which are slowly killing him. Meanwhile, Barry tries to cope with the loss of his superspeed, and Caitlin meets her Earth Two counterpart.moreless
The team takes on Zoom after learning his background and how to use it against him. However, Zoom escapes their trap and takes one of their own hostage to force Barry to give up his speed.moreless
Determined to gain enough speed to beat Zoom, Barry travels one years into the past so that he can convince Eobard Thawne to show him the secret of his speed. However, Eobard soon learns that Barry is from the future and things go awry.moreless
A new speedster spreads chaos throughout Central City, and Barry must go faster than ever before if he hopes to stop her. Meanwhile, Cisco has vibe-visions of Zoom, and Harry and Jesse argue over Harry's over-protectiveness.moreless
King Shark escapes from ARGUS, so Lyla and Diggle come to Central City to hunt the metahuman down. Meanwhile, King Shark is hunting down Flash, who is preoccupied with what happened during his recent trip to Earth-2.moreless
On Earth-2, Cisco appeals to Killer Frost to help them find Zoom--and a captive Barry--before it's too late. On Earth-1, Caitlin finds a way to cure Jay while he prepares for a rematch against Geomancer.moreless
While Harry goes back to Earth-2 with Barry and Cisco to rescue his daughter Jesse from Zoom, Joe, Caitlin, and Jay deal with a new metahuman menace.
Barry teams up with Wells to find a way to close the breaches, but they are distracted by a meta-human nicknamed Tar Pit who can transform into liquid asphalt. Meanwhile, Iris becomes concerned for Wally's safety when she learns he is drag racing.moreless
Cisco works with Harry to stabilize his "vibe" power, and gets a vision of Eobard Thawne killing Dr. McGee. The team soon realizes that Reverse-Flash is back... from a time period before he killed Barry's mother. Meanwhile, Iris says goodbye to her dying mother and suggests that Wally do the same, and Patty prepares to leave Central City.moreless
The Flash battles a meta-human whose powers are the opposite of the hero's... and may prove too much for him to handle. Meanwhile, Barry considers whether to tell Patty the truth about his secret identity, and Wally is less than thrilled to have a new family.moreless
Croatoan sends Duke to attack the group when they come up with a way to restore the aether core. Meanwhile, Dwight and Nathan both face terrible choices when Croatoan offers them what they've always wanted.moreless
Nathan and the Guard manage to capture Duke, and Nathan tries to get through to his friend. Meanwhile, Croatoan explains his plan to Audrey, and insists that he'll give the people of Haven everything that they've ever wanted... if Audrey cooperates with him.moreless
Weather Wizard plans to get revenge on Flash and recruits Captain Cold and Trickster to help him. Meanwhile, Harry considers his deal with Zoom, Joe and Iris meet Wally, and Patty meets the man who killed her father.moreless
The citizens of Haven gather at the police station to protect Audrey from Croatoan, but a traitor from within threatens their plans.
A mysterious immortal named Vandal Savage comes hunting for Kendra, and Barry and Cisco take her to Star City seeking Oliver's help. Meanwhile, Caitlin and Harrison create a speed enhancer, Velocity-6, but they need Jay to test it and he refuses.moreless
While Duke tries to convince Hallie to reopen the thinny, Nathan tries to escape from the Void where he and William are trapped. Meanwhile, Dave must consider making the ultimate sacrifice to stop Croatoan.moreless
While Hallie opens a thinny so that Nathan can enter the Void, one of the new Troubled confronts Duke over what he did to her. Meanwhile, Vince and Dwight discover that Croatoan is killing the Troubled that might break his link to Dave.moreless
Barry's confidence is crushed after Zoom cripples him, and Iris calls Henry in to help his son. Meanwhile, Grodd launches a new plan to gain others like himself, and Caitlin convinces Harrison to help them.moreless
Nathan and Vince use a Trouble to travel back in time to 1983 to try and find out how Croatoan was able to kill the Colorado Kid. However, Vince tries to stop the murder, while Nathan meets Lucy. Meanwhile, mysterious men in suits capture Duke and hold him captive.moreless
Barry tries to lure Zoom into a trap despite Caitllin's objections, and Joe wonders if his foster son has an ulterior motive. Meanwhile, Dr. Light escapes from her prison and the team turns to her Earth-1 counterpart--Linda--for help.moreless
Dave and Vince try to track down Croatoan, while Dwight, Audrey, and Nathan convince a Troubled woman to bring back Charlotte from the dead. In North Carolina, Duke has a vision of Haven's future.moreless
The Flash and his team battle Doctor Light, the newest breacher to come to Earth-1. This time, the team has Harrison Wells to help them... the Harrison from Earth-2. Meanwhile, Barry finally asks Patty on a date, and Cisco asks a new barista for her number.moreless
The town's mysterious killer uses a Trouble to target Nathan, Dwight, Audrey, and Charlotte for death... and to stop them from recreating the Barn. Meanwhile, Duke and Seth search for the mysterious man who can drive the black tar from the bodies of sinners.moreless
The team tries to find a substitute for Ronnie before Martin dies due to a lack of molecular stability. Meanwhile, Francine startles Joe with unexpected news, and Barry hesitates to become romantically involved with Patty.moreless
The Sandman puts Audrey in a coma and plans to force her to commit to him forever through a wedding ceremony in his dream world. In Massachusetts, Seth investigates reports of a girl phasing through a wall and finds Duke... and has no memory of Duke or Haven.moreless
Lisa tells the team that her brother Len has been kidnapped. However, when Barry makes contact with the villain, he insists that he doesn't want to be rescued.