Nick is being reunited with his mother, Kelly Burkhardt briefly. Sean Renard wakes Juliette from her coma with a potion, revealing himself to be a half-Zauberbiest and a Royal. The potion is causing Sean and Juliette to become dangerously obsessed with each other. This requires all of Rosalee's apothecary skills to resolve.

Juliette is unable to remember her relationship with Nick. Nick is forced to explain to Hank about Wesen and that he is a Grimm.

Adalind conducts affairs with both Sean Renard and his brother, Eric, to become pregnant and trading the baby with Stefania Vaduva Popescu, the Queen of the Schwarzwald Gypsies, for the return of her powers.

Eric conceives a plan to capture Nick and force Sean to return to Europe using the zombies of Baron Samedi to create chaos in Portland. The season ends with Nick in a coffin in the first stage of a Cracher-Mortel victim: paralysis with a death-like appearance.