• Tom Cavanagh and Grant Gustin attend the 'The Flash' Special Video Presentation and Q&A during Comic-Con International 2016 at San Diego Convention Center on July 23, 2016 in San Diego, California.

Tom Cavanagh and Grant Gustin attend the 'The Flash' Special Video Presentation and Q&A during Comic-Con International 2016 at San Diego Convention Center on July 23, 2016 in San Diego, California. (Photo : Getty Images/Matt Winkelmeyer)

"The Flash" Season 3 episode 12 is titled "Untouchable" and it will air on Aug. 7. The upcoming segment will see Iris in danger when a new villain creates chaos in Central City. Here are a few spoilers for the next chapter of the series. Read on to find out what happens next. Also, find out where to watch episode 3x12 online via live stream.

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[Spoiler alert! This article contains spoilers for "The Flash" Season 3 episode 12 "Untouchable." Do not read further if you don't wish to know more about it.]

In "The Flash" Season 3 episode 11, viewers saw Cisco defeat a bounty hunter called Gypsy from Earth-19. She had come to capture Cisco for illegal interdimensional traveling. With the help of Julian's stratagem, Cisco is able to defeat Gypsy and allows her to go back to her planet. Meanwhile, Iris goes after an arms dealer with the help of Wally and finds herself in danger. She is saved by Wally, but Joe becomes increasingly suspicious of Iris. And Barry tells Wally that he must be able to become better than Barry in order to defeat Savitar when he comes for Iris.

Moving on to "The Flash" Season 3 episode 12 "Untouchable." According to Spoiler TV's description of the upcoming segment, Barry and Team Flash will go after a meta-human criminal Clive Yorkin. He is methodically killing people in the Central City by decomposing their bodies at an accelerated rate.

Yorkin is after Joe. Unfortunately, Iris gets caught in the crossfire and becomes his victim. A promo video for "The Flash" Season 3 teases the events of episode 12. It shows Iris' life in danger as Yorkin touches her and her body begins to decompose.

Wally comes to rescue Iris, but is he too late? Is he not fast enough, Wally is heard questioning his speed in the promo.

"Too late, Kid Flash," Yorkin tells Wally.

Meanwhile, Barry takes Kid Flash's training to another level. In the promo, Barry promises to teach Wally everything he knows. Scroll down to watch the promo online.

"The Flash" Season 3 episode 12 airs Feb. 7 on The CW. Fans can also watch "Untouchable" online via live stream on cwtv.com after its television broadcast. Stay tuned for more spoilers and updates.