If you are writing a paper on this episode, you might consider these central themes:
Below is an overview of the episode, which is the most prominent result for this specific season and episode combination. Summary of Grimm S2E5: "The Good Shepherd" [S2E5] The Good Shepherd
The title and plot play on the biblical concept of the "Good Shepherd" (John 10:11), ironically casting a literal wolf as the shepherd of a literal flock of sheep. If you are writing a paper on this