Barry Questions DeVoe in New 'The Flash' Clip

The CW has released a new clip for 'Therefore I Am', tonight's seventh episode of The Flash's fourth season.

The clip shows Barry Allen/The Flash (Grant Gustin) coming face-to-face with Clifford DeVoe/The Thinker (Neil Sandilands). He asks DeVoe where he was on the night of the particle accelerator explosion, and whether or not he was involved in the recent bus meta incident.

DeVoe accuses Barry of being too accusatory of him, and asks how much longer the questioning will go.

Barry hands DeVoe his business card, and manages to steal his mug in the process. Knowing The Flash, it's safe to assume that this will be used to get some sort of DNA sample from the potential suspect.

"Barry starts to get an inkling early that this is going to be somebody serious and we're going to want to nip it in the bud right away just because when we heard about this guy, thinking back to who we heard about him from, Cadabra mentioned DeVoe to Barry and then Savitar, evil Barry actually mentioned him Barry and Iris," Gustin told reporters during a recent set visit. "So, Barry doesn't want to … Barry's taking it pretty seriously right away. He starts to, before anybody else on the team, knows for sure that this is our guy and starts to become a little bit obsessed with getting him, because he doesn't want things to get out of hand again, as they always do."

"We start to see [Barry] become … unravel slightly for the first time all season." Gustin continued. "Because he's been pretty put together this year, positive. He starts to become a little obsessed with finding this guy and getting everyone to see and be on the same page as him and see that this our guy for sure. But everyone else has their doubts for a while."

The Flash airs Tuesdays at 8/7c on The CW.