From VancouverFilm.Net, Sneak Peek new footage, plus images from "The Flash" episode "Run, Iris, Run", written by Eric Wallace and directed by Harry Jierjian, airing March 13, 2018 on The CW:
"...'Team Flash' confront 'Matthew' aka 'Melting Pot' (Leonardo Nam), who has the ability to swap people's 'DNA'. During a battle with Team Flash, Matthew accidentally takes the speed away away from 'Barry' (Grant Gustin) and gives it to 'Iris' (Candice Patton).
"Now, with a new threat unleashed on 'Central City', Barry must act as team leader while Iris takes on the mantle of the superhero speedster in order to defeat their new foe..."
Click the images to enlarge and Sneak Peek "The Flash: Run, Iris, Run"...