Watch The Flash Season 1 Online
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Dr. Martin Stein is back on The Flash Season 1 Episode 23. Elsewhere, Wells presents Barry with a life-changing choice on this season finale.
On The Flash Season 1 Episode 22, as Wells once again gets the upper hand on the STAR Labs team, Barry realizes he needs to make a big move and reaches out to an old foe, Captain Cold, for help.
On The Flash Season 1 Episode 21 Barry deals with the Reverse Flash's latest threat while Dr. Wells releases Grodd onto on the city to distract him.
On The Flash Season 1 Episode 20, Joe, Barry, Cisco and Caitlin try to set a trap for Harrison Wells and Cisco uses himself as bait, putting himself in grave danger.
On The Flash Season 1 Episode 19 Joe and Cisco travel to Starling City to get some help from Capt. Lance in their investigation into Harrison Wells and Cisco meets Black Canary.
On The Flash Season 1 Episode 18 Felicity surprises Barry when she shows up in town with her boyfriend Ray in tow, looking for help on his supersuit.
On The Flash Season 1 Episode 17, when a Trickster impersonator is bombing Central City, Joe and Barry question the original, imprisoned for 20 years.
On The Flash Season 1 Episode 16, The Flash learns that Captain Cold and Heat Wave have returned to Central City, this time with Snart's baby sister, Lisa, in tow.
On The Flash Season 1 Episode 15 Cisco realizes that Dr. Harrison Wells may be connected to the Reverse Flash.
On The Flash Season 1 Episode 14 after the nuclear explosion separates Ronnie and Martin they have to decide if they're safer together or apart.
Robbie Amell guest stars on The Flash Season 1 Episode 13. He's back as Caitlin's former fiance, who is now a dangerous meta human. Uh-oh.
On The Flash Season 1 Episode 12 Caitlin decides she and Barry need to find new loves to occupy their minds other than Ronnie and Iris and they hit a karaoke bar.
On The Flash Hartley Rathaway, a former STAR Labs employee who was affected by the particle accelerator explosion, returns to exact revenge on Harrison Wells.
The Flash Season 1 Episode 10 is titled "Revenge of the Rogues." It will kick off 2015 for this CW series and it will feature the return of Captain Cold.
On The Flash, Barry comes face to face with the Reverse Flash -- the man who killed his mother! When he escapes, The Flash Team works to bring him back in.
On The Flash Barry is excited when Team Arrow visits Central City during an investigation, but things don't go well when he tries to prove himself to Oliver.
he Flash goes up against Farooq aka Blackout, a metahuman who can harness electricity. During their battle, Farooq zaps The Flash and siphons all his electricity, leaving The Flash without his speed.
The Flash faces a new metahuman named Tony, AKA Girder, who can turn himself into girded steel at will. Wells and Caitlin worry for Barry's safety as Cisco finds a way to take Girder down.
On The Flash, after a bomb goes off, the Army rolls in and takes over, surprising Joe. Joe suggests his new friends at STAR Labs should look into the Army involvement.
Felicity visits The Flash because she heard of Barry's new powers and wants to get a look for herself. She's there in time to get a look at Captain Cold, too!
On The Flash Season 1 Episode 3, Iris and Eddie continue to hide their relationship, while Joe decided to finally visit Henry in jail.
On The Flash, when Barry escorts Iris to a University function to honor a scientist, he saves a life but can't capture people responsible for a robbery in progress.
After waking up from a trauma induced coma, Barry Allen discovers he has special powers.