DeVoe has beaten Team Flash at every turn, including taking Killer Frost's powers away from Caitlin. Will their luck turn around with Gypsy's help? Will Caitlin find a way to activate her powers again? Time is running out for Team Flash to take down their most intelligent foe so far.
The official episode description from the CW says, "Barry (Grant Gustin) and Team Flash team up with Gypsy (guest star Jessica Camacho) to try to thwart Thinker's plan. Meanwhile, Cisco (Carlos Valdes) and Gypsy have a heart to heart talk about their relationship."
Check out the official photos for The Flash Season 4 Episode 20, "Therefore She Is," which airs Tuesday, May 1:
Gypsy Joins Team Flash
Will Cisco and Gypsy Survive as a Couple?
Caitlin Works with Harry
Will She Find Killer Frost Inside Her?
Barry and Iris Strong as Ever
DeVoe and His Wife
Why Does She Have a Sword?
Will She Remember the Truth and Turn on Her Husband?
Will DeVoe Out-think Team Flash Once Again?
(Image courtesy of The CW)