Opening Quote: "He stripped off his skin and tossed it into the fire and he was in human form again." After Juliette stumbles upon a brutal murder, Nick learns the suspected creature, and friend of Monroe, is suffering from a mysterious condition—the inability to completely return to human form. This mysterious condition leads them to a therapist who has created an artificial drug to suppress the creature side, with horrifying side effects. Meanwhile, the investigation takes a surprising turn when Hank sees something he can not quite explain.
Reception
Viewers
The episode was viewed by 4.45 million people, earning a 1.2/4 in the 18-49 rating demographics on the Nielson ratings scale, ranking third on its timeslot and sixth for the night in the 18-49 demographics, behind , Blue Bloods, 20/20, Primetime: What Would You Do?, and Shark Tank. This was a 6% decrease in viewership from the previous episode, which was watched by 4.73 from a 1.4/4 in the 18-49 demographics. This means that 1.2 percent of all households with televisions watched the episode, while 4 percent of all households watching television at that time watched it.
Critical reviews
"Big Feet" received mixed-to-positive reviews. The A.V. Club's Kevin McFarland gave the episode a "B+" grade and wrote, "What a difference a week makes. 'Big Feet' faces many of the same challenges that last weeks' Cinderella-themed episode had to deal with, bringing in a character from legend that is well-known but perhaps doesn't necessarily fit easily within the worldGrimm has created for itself over the course of its first season. This time, that story is Bigfoot, which gets introduced via some Blair Witch Project documentary camerawork as some cryptozoologists run into a very angry creature. But I'll be damned if Grimm doesn't just pull the whole thing off. Just about everything that went wrong with last week's episode — too much focus on the episodic characters, not enough of Nick/Hank/Monroe, little exploration of any of the relationships the show has built so far — didn't happen here, instead replaced by a rather taut and thrilling standalone episode that manages to whip through an interesting bit of Wesen subculture while also slowly advancing the glaring fact that Nick will have to tell Juliette exactly who he is." Nick McHatton from TV Fanatic, gave a 2.8 star rating out of 5, stating: "There was at least one good thing to come out of 'Big Feet,' with Juliette finally hopping back on the Wesen trail and telling Nick about her findings. The rest of the episode set up almost nothing, and instead sent the story momentum Grimm has been building up over the last few months crashing and burning." Shilo Adams from TV Overmind wrote, "'Big Feet' was a noticeable rebound from last week's episode and set up what could be a reveal-heavy finale that lays all the cards on the table. It laid the groundwork, in particular, for both Hank and Juliette to find out about Nick's other life, or at least the existence of creatures. There have been times earlier in the season where it felt like they were never going to be informed of Nick's Grimm life, that thread just twisting in the wind for all to see, but all that slow burn was worth the price of admission to 'Big Feet'. Grimm can feel a little too insular at times, Nick's secret not being able to be shared with a good chunk of the supporting cast, so bringing at least one, if not both, of his confidantes will open things up that much more."
