Following tomorrow night's big Zoom-centric episode, the next "Flash" episode will see the TV debut of a comics character as well as further developments in the West family. The episode, titled "Back to Normal," will introduce Haig Sutherland as Griffin Grey, a metahuman with a grudge against Harrison Wells. And, as revealed in the episode synopsis, the episode will feature Wally West possibly coming closer to learning the truth about the Flah's secret identity. For more information about "Back to Normal," check out the synopsis and photos below.

WELLS IS ATTACKED BY DC COMICS' CHARACTER GRIFFIN GREY -- A meta-human with super strength named Griffin Grey (guest star Haig Sutherland) mistakes Harry (Tom Cavanagh) for Earth-1 Harrison Wells and kidnaps him, demanding that Wells cure him from his current condition. Realizing another brilliant Wells could help track Griffin's location, Barry asks Jesse (guest star Violett Beane) to help. Meanwhile, Wally (Keiynan Lonsdale) corners Joe (Jesse L. Martin) about The Flash. John Showalter directed the episode written by Brooke Roberts & Katherine Walczak (#219). Original airdate 4/26/2016.

The "Back to Normal" episode of "The Flash" airs on Tuesday, April 26 at 8 PM ET on the CW.