CW's The Flash has teased the DC Comics character Gorilla Grodd throughout the first season, but a new trailer for next week's episode, "Grodd Lives", shows this 800-pound gorilla wreaking havoc on Barry (Grant Gustin) and his team. This latest footage gives us our best look at Grodd yet, while also showing a pivotal scene where Iris (Candice Patton) confronts Barry, revealing that she knows he is The Flash. She also learns that Harrison Wells is actually The Man in Yellow, a.k.a. Reverse Flash.

This trailer also shows that Harrison has captured Detective Eddie Thawne (Rick Cosnett). While Team Flash starts to close in on Wells, he unleashes Grodd on the city in order to distract Barry and the team. Joe (Jesse L. Martin), Barry and Cisco (Carlos Valdes) head down into the sewers to catch Grodd but the gorilla quickly gets the upper hand after he kidnaps Joe.

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"Grodd Lives" airs Tuesday, May 5 at 8 PM on The CW, which will be followed by the final two episodes of The Flash Season 1. "Rogue Air", which features Arrow's Oliver Queen (Stephen Amell) joining forces with Barry, airs Tuesday, May 12, with the season finale, "Fast Enough", airing on Tuesday, May 19. Check out the new trailer below and stay tuned for more on The Flash as the first season comes to a close.