Taco Bell is at it again.

The fast food chain is preparing to unleash the thirdflavor of its popular Doritos Locos Tacos.

The Fiery Doritos Locos Taco will be available nationwide on Thursday, Aug. 22. The taco combines spicy chili with a hint of lime flavor inside a crunchy red shell.

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Taco Bell says 600 million Doritos Locos Tacos have been sold since the nacho cheese flavor was first released in March 2012.

Earlier this year, Taco Bell started selling their second Doritos-flavored taco: Cool Ranch.

President Brian Niccol said: "In another Taco Bell first, we partnered with Frito-Lay to create a DLT that delivers heat, but with a twist and is available exclusively at Taco Bell," President Brian Niccol says. "Mirroring the flavors of a regional spicy Doritos chip, we made a few changes based on customer feedback - including the use of a red shell and a more descriptive name - to create Fiery DLT."

The Fiery DLT will be cost $1.39 for regular (170 calories; 10g total fat) and $1.69 for supreme (200 calories; 12g total fat).