The Flash (2014– )
4 user 15 critic

The Nuclear Man 

After Ronnie kills a physicist, Barry and the team go after him. Joe enlists Cisco's help in the reinvestigation of Nora Allen's murder. Barry struggles with a new relationship and his duties as The Flash.


Glen Winter


Greg Berlanti (developed by), Andrew Kreisberg (developed by) | 4 more credits »




Episode cast overview, first billed only:
Grant Gustin ... Barry Allen / The Flash
Candice Patton ... Iris West
Danielle Panabaker ... Caitlin Snow
Rick Cosnett ... Detective Eddie Thawne
Carlos Valdes ... Cisco Ramon
Tom Cavanagh ... Dr. Harrison Wells
Jesse L. Martin ... Joe West
Victor Garber ... Dr. Martin Stein
Clancy Brown ... General Wade Eiling
Robbie Amell ... Ronnie Raymond / Firestorm
Bill Dow ... Quentin Quale
Michelle Harrison ... Nora Allen
Isabella Hofmann ... Clarissa Stein
Melise ... Linda Park (as Malese Jow)
Chase Masterson ... Sherry


Barry's friends fear his moving too fast in his relationship with Linda. Joe, having pulled Cisco into his new investigation of Nora Allen's murder, gets a call saying that the blood on the wall at Barry's house is Barry's own yet not kid's blood. Meanwhile, Dr. Wells and Caitlin find Ronnie under the possession of missing scientist Dr. Martin Stein. Tests reveal that, under stress from this duality, Ronnie's body will go nuclear unless he's put down or a way is found to safely split them apart in under two hours.

Plot Summary | Add Synopsis


TV-PG | See all certifications »

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Did You Know?


Cisco wears a T-shirt that references The Big Bang Theory (2007), perhaps as an homage to Sheldon who regularly references The Flash. See more »


While Joe and Cisco are on the phone, "Answer" and "Ignore" can be seen on Joe's screen as if he had never picked up the phone in the first place. See more »


Eddie Thawne: Sir, please, you have everything to live for.
Jumper: No, I don't.
[the Flash saves him from the building]
Jumper: [suddenly finding himself back on the ground with Eddie] Are you gonna let me go back up there?
Eddie Thawne: No.
See more »


Edited into The Flash: What's Past Is Prologue (2018) See more »


Uptown Funk
Performed by Mark Ronson featuring Bruno Mars
See more »

User Reviews

Flame On
10 February 2015 | by ThomasDrufkeSee all my reviews

Tonight, we finally got an in depth look into the Firestorm character. I'm not too familiar with his comic book counterpart, but I do know the idea of two separate humans combining into one is pretty fascinating. With that being said, the episode fell a little short in that department, but was definitely increasingly interesting in Barry's mother's case.

Detective West and Cisco decided to take on new evidence at Barry's old house, now occupied by who we should presume to be Joe's new love interest. I'm not sure how I feel about a mirror that takes pictures, but when you have a man that can run faster than a speeding bullet, I guess all sense of what can be real is lost. It was revealed that Barry's older self was indeed at the crime scene that night years ago. It doesn't come as a shock as it seems the writers are going the 'Flashpoint' route with the murder. Will this eliminate the detectives gripe on Dr. Wells? Hopefully not, it only took Oliver Queen 5 minutes to realize something was up with that guy, so I would think a detective can follow his gut.

Joe wasn't the only one getting a new love interest, as Barry is now dating Linda. Something still seems a little sketchy with her but it's nice to see Barry going after somebody other than Iris. Speaking of her, she has become more and more unlikable. Going out of her way to try and break Barry and his girlfriend up is not something you do to your best friend. If you actually have feelings for him, then talk to him about it. Where's Eddie by the way? Something that was nice to see was Wells doing something for his crew. I think it's clear he does have some sort of affection for all of them if he's willing to sacrifice his plan for the well being of Caitlin.

So Barry from the future huh? As much as I thought Firestorm looked cool, that storyline has yet to grab my attention. It was just weird watching him try and interact with people as Stein. I did like how his back-story was explained and at least made sense this time.

+Wells' unselfish action

+Barry from the future


-Awkward Firestorm interactions



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Release Date:

10 February 2015 (USA) See more »

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Aspect Ratio:

16:9 HD
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