The Grimm Identity In the wake of his mother's beheading and Juliette's death, things have never been more chaotic for Nick. Having lost so much, Nick must dig deep and decide what type of person he wants to be, while also coming to grips with fathering a child with his once sworn enemy, Adalind. His search for the truth leads him to FBI Agent Chavez and puts him at odds with those close to him.
Clear And Wesen Danger On the heels of becoming a new father, Nick must make some major changes to keep his child and Adalind safe. Monroe and Rosalee step in to help prepare for the new addition. Meanwhile, Capt. Renard assigns Hank a new partner as they investigate a brutal murder at an investment group.
Lost Boys Rosalee goes missing after a band of orphaned children target her as the mother figure they have always wanted. With a furious Monroe by their side, Nick and Hank race against the clock to find Rosalee after discovering a connection to an earlier missing persons case that didn't end have a happy ending. Meanwhile, Adalind ponders a return to her career after running in to an old colleague.
Maiden Quest A wealthy mobster sets three young men on a quest to win his daughter Elena's hand in marriage and earn his fortune. As they work toward accomplishing their task, bodies start to pile up and Nick and Hank are on the case. Meanwhile, Adalind and Nick try to adjust to home life but a surprise visitor shakes things up.
Rat King Nick and Hank are called to the scene when three Wesen go out on a hunt at a local dump and get more than they bargained for when two turn up dead after they encounter the mythical Rat King. Meanwhile, a very badly wounded Trubel is taken to the hospital and Nick finally meets Meisner.
Wesen Nacht Monroe might be in danger when Wesen business owners are targeted in a string of attacks being investigated by Nick and Hank. Meanwhile, Truble catches Nick and Adalind up on her recent activities; and Capt. Renard becomes involved in local politics when he endorses a candidate.
Eve Of Destruction The surprise return of "Juliette" sends Nick on a quest for the truth; Trubel has information that could be valuable; Monroe and Rosalee turn to the Wesen Council for answers as the uprising escalates.
A Reptile Dysfunction A local legend comes back to life as Nick and Hank investigate a mysterious sighting linked to a tourist's death at a local lake. Rosalee's past comes back to haunt her. Elsewhere, Capt. Renard continues to support a candidate for mayor. Meanwhile, Nick is shown the scope of the Wesen uprising as the secret government agency takes him into the heart of their Portland operations center.
Star-Crossed A barbaric Wesen ritual is brought to the present and Nick, Hank and Wu are already five steps behind the serial killer. To aid in the investigation, Monroe goes undercover. Meanwhile, Hadrian's Wall's war against Black Claw intensifies as Eve uses her unique skills to interrogate a suspect.
Map Of The Seven Knights Monroe gets a call from a relative in Germany that will bring Nick closer to his ancestors. Things get complicated when the nefarious group Black Claw is also after the same artifacts. Elsewhere, Capt. Renard helps a mayoral candidate get an edge on his opponent. Meanwhile, Trubel confronts Eve about Nick and Adalind.
Key Move Newly gained artifacts take Nick and Monroe closer to the source of a long-gestating mystery. Elsewhere, Black Claw makes a deadly move that will send Portland into disarray.
Into The Schwarzwald Nick and Monroe find a treasure in Germany that has been hidden for centuries. Back in Portland, Capt. Renard joins Hank and Wu to track down a deadly assassin who has thrown Portland into havoc. Little do they know that Eve is on a hunt of her own for the same man. Meanwhile, someone from Rosalee's past tracks her down.
Silence Of The Slams A local maskmaker is targeting Wesen to create Luchador masks that bestows great power to its wearer. As Nick, Hank, Monroe and Rosalee work to stop the killings, Capt. Renard considers an offer that will bring him closer to claiming his destiny. Meanwhile, Eve's further investigation of a recent incident raises new questions.
Lycanthropia Following a brutal attack in the woods, Nick and Hank stumble upon a terrifying Wesen disease that may be the inspiration for the modern-day werewolf myth. Meanwhile, Adalind is offered an uneasy alliance that may help her get back what she wants most. Elsewhere, Eve's investigation uncovers a surprising revelation.
Skin Deep When Nick and Hank come across a beautiful young woman who seems to have aged 70 years overnight and died, they suspect Wesen involvement. The investigation leads to a local doctor and Rosalee is enlisted to help find the truth. Meanwhile, Eve takes bold steps to learn more about Capt. Renard's nefarious dealings.
The Believer An Evangelical minister attracts more "true believers" to his tent revival with the power of his Wesen identity; and Nick and Hank have to get involved when all hell breaks loose. Meanwhile, Capt. Renard takes further steps to hold sway in local government; Eve borrows a page from Adalind's book to gain more access to Black Claw.
Inugami When the severed head of a young man is found under a bridge, Nick and Hank find themselves on the case of Japanese Wesen acting on an ancient tradition of revenge. Elsewhere, Adalind decides to go back to work at her old law firm and has her first face-to-face with Eve.
Good To The Bone When a man is found dead with all of the bones in his body seemingly liquefied and removed, Nick and Hank find themselves in the middle of a gruesome family arrangement. Meanwhile, Wu deals with a crisis of his own and Hank reunites with his old flame, Zuri.
The Taming Of The Wu Suffering from the bite he sustained, Sgt. Wu becomes entangled in a surprising altercation that may land him in hot water. After meeting the mysterious Bonaparte, Adalind is faced with a difficult decision that could change her and Nick's lives forever. Meanwhile, Hank gets even closer to Zuri and their relationship begins to take shape. Back at HW, Eve senses that a new force may jeopardize the entire operation.
Bad Night Nick leans on Monroe and Rosalee as he worries that he may lose everything as he continues to battle Black Claw. Renard ramps up his campaign as election time nears. Elsewhere, Adalind is faced with a very difficult decision in order to protect her children. Meanwhile, Hank's relationship with Zuri takes an unexpected turn and Wu tries to gain control of his new reality.
Beginning Of The End, Part 1 Black Claw makes a strategic move against Hank that shocks everyone and sends Nick on a war path; at the same time, Hadrian's Wall search for a mystery man named Bonaparte; and Adalind and Capt. Renard try to come to terms with their new - and very unpredictable - reality.
Beginning Of The End, Part 2 Black Claw makes a strategic move against Hank that shocks everyone and sends Nick on a war path; Hadrian's Wall search for a mystery man named Bonaparte; Adalind and Capt. Renard try to come to terms with their new - and very unpredictable - reality.