Potential Energy



Critic 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

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 8, 2018 | Full Review…

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

Aug 4, 2018 | Rating: 9/10 | 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 26, 2018 | Rating: 3.5/5 | 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 26, 2018 | Rating: 8/10 | Full Review…

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 27, 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 27, 2018 | Full Review…

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

Jul 25, 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 25, 2018 | Rating: B+ | 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.

Aug 1, 2018 | Rating: 3/4 | 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 31, 2018 | Full Review…