"A Single Blade of Grass" featured guest appearances by Floyd Red Crow Westerman and Michael Greyeyes.
When Millennium Group consultant Frank Black (Lance Henriksen) arrives to investigate, he notices similarities between both corpses.
The archaeologist in charge of the dig, Liz Michaels (Amy Steel), is adamant that the site should stay intact for further excavation, but foreman Richard Powell (Garry Chalk) and his mostly Native American crew insist the construction project must continue.
Black believes the killing took place in a hotel basement; finding the crime scene, he consults Michaels, who notes that symbols painted on the walls come from several different indigenous cultures but all concern communication with the spirit world.
Black visits a bar frequented by the construction workers and their elderly mentor (Floyd Red Crow Westerman).
Executive producer Glen Morgan begrudgingly allowed Maher and Reindl to show the ability in this episode, saying "I felt last year those visions were a cheat.
Club's Emily VanDerWerff rated the episode a A−, calling it "yet another adventure in weird, Native American mysticism from the folks at 1013 Productions".
[8] VanDerWerff felt that although the episode contained several plot holes, it worked with "a kind of dream sense, following its own weird, nightmare logic".
[9] Robert Shearman and Lars Pearson, in their book Wanting to Believe: A Critical Guide to The X-Files, Millennium & The Lone Gunmen, rated "A Single Blade of Grass" one star out of five.
Shearman felt that the episode was "tedious", citing a lack of any real action and a "banal" ending which he described as having been poorly foreshadowed.