In Season 3 of this supernatural drama, Nick (David Giuntoli) deals with some surprising aftereffects of his zombie attack-and the outcome is more positive than he could have anticipated. Meanwhile, he works to rebuild his relationship with Juliette (Bitsie Tulloch), whose newfound knowledge of Nick's world leads to her being increasingly involved in his Grimm work. Monroe (Silas Weir Mitchell) asks Rosalee (Bree Turner) to marry him, but their impending nuptials raise concerns among their families about the appropriateness of a mixed-Wesen wedding, especially one that has a Grimm as best man. Meanwhile, Adalind (Claire Coffee) continues her fight to regain her powers, but with a baby on the way and an all-out war brewing between her and the royal family, she may have gotten in over her head.

No longer denying his heritage as a Grimm, Portland homicide detective Nick Burkhardt pursues strange crimes that appear to be related to creatures of mythology and folklore. With partner Hank and Wesen confidants Monroe and Rosalee at his side, Nick comes face to face with an ancient, royal bloodline connected to Captain Renard. If that weren't enough, he also engages in a battle to keep from losing the love of his life.