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Looking to watch Grimm Season 1 Episode 4 online? TV Fanatic is your destination for every paid and free streaming option of the Grimm S1E4 full episode from 2 affiliates.

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Episode Details

Grimm Season 1 Episode 4: "Lonelyhearts"

Monroe goes undercover this week, while a stranger seeks revenge for the death of a pal at the hands of a Grimm.