The Flash Cisco (Carlos Valdes, right) and Caitlin (Danielle Panabaker) will have to help Barry (Grant Gustin) when he loses his powers in episode 7 of "The Flash" Season 1. Photo: The CW

In episode 6 of “The Flash” on the CW, Barry (Grant Gustin) had to stretch his powers further than ever before, reaching speeds faster than the speed of sound to stop Tony (Greg Finley). But what will the Flash do in episode 7, “Power Outage,” when he does not have any powers?

According to the synopsis, Barry’s next foe will be a problem for the superhero. A new metahuman, Blackout, who can harness the power of electricity, will surface. That’s bad news for Barry because when he tries to stop Blackout, his new enemy zaps all the electricity out of Barry’s body, leaving him powerless.

The new episode will not be a good time for Barry to lose his powers. The synopsis also reveals that William Tockman/Clock King (Robert Knepper), who first appeared in “Arrow” Season 2, will show up to cause trouble. Tockman will lead a coup inside the Central City police department and take everyone in the building hostage, including Joe (Jesse Martin) and Iris (Candice Patton).

Meanwhile, Iris will continue working on her blog, in which she renames “the Streak” to “the Flash” and notes that she has faith the superhero will be able to save her and her dad from Tockman.

Watch the promo for episode 7 below:

Will Barry be able to help rescue Joe and Iris without his powers? Plus, how will he get his super speed back? Fans will have to tune in Tuesday, Nov. 24, to a busy new episode to find out. The episode is the last before the “Flash”/”Arrow” crossover episodes air the following week. “The Flash” airs Tuesdays at 8 p.m. EST on the CW.  

How will Barry handle losing his powers? Tweet your thoughts to @Ja9GarofaloTV