"The Flash" has been, ahem, a runaway hit for The CW in its first season -- last month's pilot was reported as the most-watched telecast in the network's history -- but it took the week off last Tuesday, the same night the midterm elections rolled in. The show will be back this week with a new episode titled "Plastique" -- featuring the introduction of Kelly Frye as DC Comics villain Plastique -- and the network has released still images from the next two episodes of the Grant Gustin-led series, including next week's "The Flash is Born."

Here's the official description of "Plastique," airing Tuesday, Nov. 11, plus photos from the episode -- including genre veteran Clancy Brown as General Eiling.

KELLY FRYE GUEST STARS AS DC COMICS' PLASTIQUE AND CLANCY BROWN GUEST STARS AS GENERAL EILING - After a bomb goes off downtown, the army, led by General Eiling (guest star Clancy Brown), rolls in and takes over the case, much to Joe's (Jesse Martin) surprise. Suspicious, Joe tells Barry (Grant Gustin) that he and his friends at S.T.A.R. Labs should look into the army's involvement. Wells (Tom Cavanagh) informs the team that Eiling was experimenting on his men to turn them into super soldiers. Cisco (Carlos Valdes) confirms one of Eiling's soldiers, Bette Sans Souci (guest star Kelly Frye), was at the bomb site. The Flash tracks her down and realizes that she's not setting off the bombs, she is a meta-human who can blow things up just by touching them. Meanwhile, when Joe learns Iris is writing about "the streak," he tells Barry to make her stop. Barry realizes Iris won't listen to him so he decides to have The Flash pay her a visit. Dermott Downs directed the episode written by Aaron Helbing & Todd Helbing & Brooke Eikmeier (#105). Original airdate 11/11/2014.

And here's a look at "The Flash is Born," including the debut of Greg Finley as another DC villain -- Girder -- seen here intimidating Iris Candice Patton).

GREG FINLEY GUEST STARS AS DC COMICS' VILLAIN GIRDER - The Flash (Grant Gustin) faces a new meta-human named Tony (guest star Greg Finley, "Star-Crossed," "Secret Life of the American Teenager"), who can turn himself into girded steel at will. While Dr. Wells (Tom Cavanagh) and Caitlin (Danielle Panabaker) are concerned about Barry's safety, Cisco (Carlos Valdes) comes up with a plan to take Tony down. Meanwhile, Iris's (Candice Patton) blog on The Flash gets her into trouble, and Eddie (Rick Cosnett) witnesses Tony's abilities firsthand and begins to ask questions that Joe (Jesse L. Martin) doesn't want answered. Joe asks Dr. Wells to help him solve Nora Allen's murder. Millicent Shelton directed the episode written by Jaime Paglia & Chris Rafferty (#106). Original airdate 11/18/2014.

"The Flash" airs 8 p.m. Tuesdays on The CW.