Everyone's favorite super-intelligent gorilla returns to "The Flash" in this week's episode, "Gorilla Warfare." In this newest clip, Joe West (Jesse L. Martin) gets some startling news from Patty (Shantel VanSanten) that the hairs found at two separate crime scenes have been identified as those of a gorilla. Of course, that can only mean one thing: Gorilla Grodd is in town.

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Here's the synopsis for tomorrow night's episode:

GORILLA GRODD RETURNS TO CENTRAL CITY - Grodd returns to Central City and kidnaps Caitlin (Danielle Panabaker). Barry (Grant Gustin) and team race to find her before it's too late. Meanwhile, Cisco (Carlos Valdes) plans his first date with the new barista at Jitters, Kendra Saunders (guest star Ciara Renee) and Patty (guest star Shantel VanSanten) begins to suspect Barry is hiding something from her. Dermott Downs directed the episode written by Aaron Helbing & Todd Helbing (#207).

"The Flash" airs on Tuesdays on the CW at 8 PM ET.