With Barry in the speed force, Iris, Kid Flash, Joe and Vibe have taken over protecting Central City. However, when a powerful armored villain threatens to level the city if The Flash doesn't appear, Cisco makes a risky decision to break Barry out of the speed force. However, the Barry that comes out isn't the same Barry that went in.
- Directed by
- Glen Winter
- Written by
- Andrew Kreisberg, Todd Helbing, Eric Wallace
Guest stars
Danielle Nicolet
Cecile Horton
Keiynan Lonsdale
Wally West / Kid Flash
Nevin Burkholder
Barfly
- M
Michaela Chalmers
Daughter
- A
Adam O'Neill
Male Driver
- S
Scott Perrie
Husband
Kim Suzanne Engelbrecht
Marlize DeVoe / The Mechanic
Britne Oldford
Shawna Baez / Peek-a-Boo
Neil Sandilands
Clifford DeVoe / The Thinker
Mark Sweatman
Norvock
All episodes — Season 4
Open season page
S4 E2Mixed Signals
Oct 17, 20176.642 min
Barry has his hands full when he takes on a dangerous meta who can control technology, while also confronting an obstacle in his personal life: the ramifications of abandoning Iris for six months to balance the Speed Force. Meanwhile, Gypsy
S4 E3Luck Be a Lady
Oct 24, 20176.942 min
Barry and the team are hit by a string of bad luck and realize it is the handiwork of a new meta, Becky nicknamed Hazard, who has the ability to give others bad luck, while cashing in the benefits for herself. Meanwhile, Harry Wells returns
S4 E4Elongated Journey Into Night
Oct 31, 20177.741 min
Cisco is shocked when Gypsy's father, Breacher, shows up on Earth-1. Breacher takes an immediate disliking to Cisco and decides to hunt him. Meanwhile, Barry runs into his old nemesis, Ralph Dibny.
S4 E5Girls Night Out
Nov 7, 20175.941 min
Having received an ominous threat from her old boss, Amunet, Caitlin fears that her past time as Killer Frost may be back to haunt her. Felicity comes to Central City to help the girls celebrate Iris's bachelorette party, while Cisco, Joe a
S4 E6When Harry Met Harry...
Nov 14, 20176.842 min
When collectors of Native American artifacts are attacked by a meta named Mina Chayton who can bring inanimate objects to life, Barry turns to a surprising ally for help. Determined to crack the identity of The Thinker, Harry enlists Cisco'
S4 E7Therefore I Am
Nov 21, 20177.841 min
Barry comes face to face with DeVoe. Devoe's past is revealed through flashbacks. Meanwhile, Iris puts the final touches on the wedding, which is a week away.