According to the plot of the series, there are events being that described in the book of fairytales written by the Grimm brothers. But all their characters do not live somewhere in a world of imagination and among people. But they are not everyone is able to see. With the move to Portland, the detective Nick started a new life, radically different. It turned out that he can see the fairy creatures from Grimm’s fairy tales. And since he is the last of the Grimms, he will have to come to the defense of the city from these fabulous beings.