Potential Energy
The Flash Season 2



Critic Ratings: 13
Critics Consensus

"Potential Energy" delivers a solid, albeit slower-paced, offering by cleverly balancing the time spent on Barry's personal issues and on the villain of the week.

Episode Info

Now that they've grown closer, Barry considers telling Patty that he is The Flash. Meanwhile, Joe and Iris try to get to know Wally (Keiynan Lonsdale). -- (C) CW


Grant Gustin
as Barry Allen/The Flash
Candice Patton
as Iris West
Carlos Valdes
as Cisco Ramon
Danielle Panabaker
as Caitlin Snow
Jesse L. Martin
as Det. Joe West
Tom Cavanagh
as Harrison Wells
Teddy Sears
as Jay Garrick
Shantel VanSanten
as Patty Spivot
Show More Cast

Potential Energy Photos

Critic Reviews for Potential Energy

Barry's relationship drama also crosses paths with the meta-human-of-the-week. We don't have any hot, low-level criminals, or a thief with a surprising way of words - man, this episode could really use Captain Cold's energy.

Jul 26, 2018 | Rating: 3/5 | Full Review…

There's still the matter of Barry's superhero identity hidden away, and Iris suggests to Barry it may finally be time to tell her.

Jul 26, 2018 | Full Review…

Potential Energy maintains an ideal balance between the villain-of-the-week story and various personal complications, while keeping Zoom in the picture as the looming threat of the season.

Jul 24, 2018 | Rating: B+ | Full Review…

Despite the winter finale having left me feeling cold it certainly feels like the show has been gone for far too long even if in reality it has only been a little over a month.

Jul 25, 2018 | Rating: 8/10 | Full Review…

That reveal of Reverse-Flash elicited an honest-to-god gasp from me. Welcome back, Eobard Thawne!

Jul 24, 2018 | Full Review…

They've out-crazied themselves in the past so "Potential Energy" had a high bar to jump over if it wanted to keep raising the stakes, but it doesn't feel like they wanted to do that just yet.

Jul 31, 2018 | Rating: 3/4 | Full Review…

Once you throw in the always unpredictable Dr. Wells, this episode delivered on pretty much every front.

Aug 3, 2018 | Rating: 9/10 | Full Review…

Wells has grown frantic in his quest to rescue his daughter from Zoom. While he promised the villain he'd help him steal Barry's speed in exchange for Cassie's life, he's open to Cisco's idea of stealing Zoom's speed instead.

Aug 7, 2018 | Full Review…

Overall there was too much fun to be had for me to get worked up over anything. If you've gotta do a disposable villain episode, this is how you do it.

Jul 25, 2018 | Rating: 3.5/5 | Full Review…

I understand that this episode was ostensibly about teaching Barry some lessons - to protect those you love and/or don't be so slow to the draw to open yourself up to someone.

Jul 30, 2018 | Full Review…

Don't let the title fool you. "Potential Energy" isn't a zippy plot, but the slower pace is necessary. The Flash needs time to refocus on Barry Allen and Barry needs time to decide what is most important to him.

Jul 30, 2018 | Rating: 5/5 | Full Review…

While I was glad to see Patty take her leave, it didn't give me reason to celebrate, and there wasn't much else of note going on during the hour, either. It wasn't the episode I would have expected coming back after the break.

Jul 27, 2018 | Rating: 3/5 | Full Review…