A new episode of The Flash titled “Therefore I Am” airs tonight (November 21) at 8PM on The CW, and the network has released a preview clip featuring Grant Gustin as Barry Allen and Neil Sandilands as Clifford DeVoe, a.k.a. The Thinker.
Before we get to the clip, here’s how The CW describes the episode:
BARRY MEETS DEVOE — Barry (Grant Gustin) comes face to face with DeVoe (guest star Neil Sandilands). Devoe’s past is revealed through flashbacks. Meanwhile, Iris (Candice Patton) puts the final touches on the wedding, which is a week away. David McWhirter directed the episode written by Eric Wallace & Thomas Pound (#407). Original airdate 11/21/2017.