Season 4, in the wake of Monroe and Rosalee's wedding, things have never been more chaotic; Nick, having lost his Grimm abilities, must dig deep and decide what type of person he wants to be. With Captain Renard in critical condition after being gravely injured and Juliette trying to come to grips with Nick's recent betrayal, the world of Grimm is spiraling out of control more than ever.
Nick must learn to cope with his new reality as a new Wesen hits Portland to steal its victims memories.
An unforgettable Wesen continues his path of destruction as he sets his sights on Trubel.
A local boxing gym comes under fire after a brutal homicide.
An ancient evil arises and consumes its victims.
A woman's delusions drive her to commit a deadly crime.
Nick wants to be a Grimm again now more than ever.
Christmas cheer comes to a halt when a menacing threat invades Portland -- Jacqueline Toboni guest stars.
A bloodthirsty legend comes to life.
The Wesenrein act on their many threats against Monroe (Silas Weir Mitchell) and Rosalee’s (Bree Turner) marriage. Meanwhile, Nick (David Giuntoli) and Hank (Russell Hornsby) bring Wu (Reggie Lee) to a place where he’s sure to find the answers he’s looking for. Elsewhere, Juliette (Bitsie Tulloch) tries to come to grips with her new reality.
After Monroe’s (Silas Weir Mitchell) abduction by the Wesenrein, Nick (David Giuntoli) gathers the whole team, including Wu (Reggie Lee), to track him down and return him to Rosalee (Bree Turner). As the search intensifies, Juliette (Bitsie Tulloch) learns more about her new reality as a Hexenbiest.
An electrifying homicide has locals thinking a house is haunted.
A Wesen bounty hunter is on the loose.
When an arson case looks to have Wesen origins, Nick (David Giuntoli) find himself reluctantly having to ask an old foe for help. Elsewhere, Viktor (guest star Alexis Denisof) teaches Adalind (Claire Coffee) the effectiveness of well-played diplomacy. Meanwhile, Juliette (Bitsie Tulloch) finds herself in a confrontation sooner than expected.
A secret ritual to bring good luck targets a Wesen group.
The scene of a murder trails back to a strange lovers' quarrel.
The tale of the frog prince gets a deadly twist.
Nick and Hank are on the trail of a chilling string of murders.
A homicide leads Nick (David Giuntoli) and Hank (Russell Hornsby) onto the dark and mysterious path of a local Native American power quest. Meanwhile, Juliette's (Bitsie Tulloch) erratic behavior lands her on the wrong side of the law. At the spice shop, Rosalee (Bree Turner) and Monroe (Silas Weir Mitchell) are on a mission and call on Captain Renard (Sasha Roiz) for help.
Nick (David Giuntoli) and Hank (Russell Hornsby) are brought in to investigate a homicide they learn is connected to an age-old Wesen rite of passage. Meanwhile, Juliette (Bitsie Tulloch) makes a surprising new ally. Elsewhere, Captain Renard (Sasha Roiz) continues to battle a darkness within, and Nick finds hope for Juliette in the last person he expected.
A series of connected murders lead everyone to think a copycat is on the loose.
The manhunt continues for a vicious serial killer.
On the heels of a shocking discovery, Nick (David Giuntoli) is hell bent on getting revenge and taking the fight to the Royals with help from Trubel (guest star Jacqueline Toboni). Meanwhile, Juliette's (Bitsie Tulloch) alliance continues to lead her down a dark path.