Check out the promo and press release for the next episode of The Flash, that will airs on May 18th.

PSYCH THREATENS IRIS – Iris (Candice Patton) is pushed to the limit as she seeks to uncover the mysterious truth about Psych (guest star Ennis Esmer). Meanwhile, Barry (Grant Gustin) initiates a new training system, that could potentially backfire, with devastating consequences. Joe (Jesse L. Martin) and Cisco (Carlos Valdes) make life-altering decisions.