The freebie comes courtesy of this year's "Steal a Base, Steal a Taco," a partnership with Major League Baseball that promised a free taco giveaway for the first stolen base during this year's World Series.
Your free taco can be had by stopping by a participating location from 2 PM to 6 PM (local time) and picking one up or all day on October 30th if you're a registered user and order via the Taco Bell website or app (you still have to pick it up though as the offer excludes delivery).
Photo via Taco Bell.