The Flash episode 4.07 photos: Therefore I Am Following yesterday’s promo for the episode, The CW has released the first photos for next week’s episode of The Flash as Barry is forced to face off against The Thinker in a non-super setting. Check them out in the gallery below! Titled “Therefore I Am,” the episode is set to air November 21 and is officially described as follows: “Barry (Grant Gustin) comes face to face with DeVoe (guest star Neil Sandilands).