The Three Bad Wolves

The episode was broadcast on December 9. It was viewed by 5.43 million people, earning a 1.6/5 in the 18-49 rating demographics on the Nielson ratings scale, marking a 32% increase in viewership and ranking first in its timeslot and fourth for the night in the 18-49 demographics, behind Frosty Returns, Dateline NBC and Frosty the Snowman.[1] This means that 1.6 percent of all households with televisions watched the episode, while 5 percent of all households watching television at that time watched it.

"The Three Bad Wolves" received positive reviews. Amy Ratcliffe of IGN gave the episode a "great" 8.5 out of 10 and wrote "I hope Grimm brings more episodes like this one. The combination of the supernatural and procedural elements was just right, and the conflict felt legitimate. It was far superior to just another bizarre murder case. For the first time, I felt like I really connected with some of the characters (Nick and Monroe). More, please."[2]

The A.V. Club's Kevin McFarland gave the episode a "B+" grade and wrote, "'Three Bad Wolves' was the fourth episode of Grimm in production order, so the fact that it was airing sixth made me a little nervous. I thought we wouldn't be getting much in terms of backstory, and pushing this hour back in the schedule isn't exactly a vote of confidence. Still, I couldn't help but feel optimistic, because all the previews featured Eddie Monroe and a murderous family feud between the Blutbaden and the Bowerswine, an unexpectedly clever take on 'The Three Little Pigs' tale. Instead of a weaker hour, this was perhaps the best episode of Grimm thus far, managing to bring some of the disparate unnecessary elements of the show into the central plot, a case of the week that included new characters and created a stronger bond between Nick and Eddie."[3]

TV Overmind's Shilo Adams wrote, "'The Three Bad Wolves' was a solid but unremarkable installment of Grimm that was another stylistic shift in terms of look, tone, and approach to such an intriguing concept. The show has been a little frantic with its trips around the stylistic map, dabbling in camp, dark humor, just plain darkness, and now police procedural, with positives and negatives coming from each experiment in identity. Its venture in the world of true police dramas didn't make for the most exciting episode in the world thanks to the almost too straightforward presentation, but 'The Three Bad Wolves' did one thing extremely, extremely right. It gave Silas Weir Mitchell a very good showcase to expand his character and show us what's behind the neurotic, wry facade of Eddie Monroe, a man caught between the world of humanity and the call of the wild."[4]

Nick McHatton from TV Fanatic, gave a 4.2 star rating out of 5, stating: "Finally! The Grimm Gods have bestowed us with an Eddie-centric episode in 'The Three Bad Wolves.' It certainly wasn't a disappointment, either, shining a spotlight on this character with very little need to deviate from the case of the week with unnecessary distractions. When the storytelling can layer this much in a procedural case, it gives me hope that the questions I'm asking will eventually get answered."[5]