Nick Burkhardt is a man on fire. Nick must look inside himself and decide who he wants to be while also dealing with fathering a child with Adalind.

As the Wesen continue to rise big changes are in store for Nick at home.

The tale of Peter Pan gets a 'Grimm' twist and Rosalee is put in danger.

A wealthy mobster sets three young men on a quest to win his daughter Elena's (guest star Madeline Zima) hand in marriage and earn his fortune. As they work toward accomplishing their task, bodies start to pile up and Nick (David Giuntoli) and Hank (Russell Hornsby) are on the case. Meanwhile, Adalind (Claire Coffee) and Nick try to adjust to home life but a surprise visitor shakes things up.

Nick (David Giuntoli) and Hank (Russell Hornsby) 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 (guest star Jacqueline Toboni) is taken to the hospital and Nick finally meets Meisner (guest star Damien Puckler).

Nick and Hank investigate a wave of coordinated Wesen gang vandalism that results in the death of a local business owner and the kidnapping of Monroe and Rosalee's friend.

Nick is on the hunt for the truth after a shocking revelation as the Wesen uprising escalates.

The legend of the Lake Monster comes back to life as Nick (David Giuntoli) and Hank (Russell Hornsby) investigate a mysterious sighting linked to a tourist's death at a local lake.

A barbaric Wesen ritual is brought to the present and Nick (David Giuntoli), Hank (Russell Hornsby) and Wu (Reggie Lee) are already five steps behind the serial killer. To aid in the investigation, Monroe (Silas Weir Mitchell) goes undercover. Meanwhile, Hadrian's Wall's war against Black Claw intensifies as Eve (Bitsie Tulloch) uses her unique skills to interrogate a suspect.

Monroe gets a call that will lead Nick to an incredible discovery.

Newly gained artifacts take Nick (David Giuntoli) and Monroe (Silas Weir Mitchell) closer to the source of a long gestating mystery. Elsewhere, Black Claw makes a deadly move that will send Portland into disarray.

"Grimm" reaches a milestone 100 episodes as Nick and Monroe fall into a world of trouble.

An ancient Wesen warrior tradition finds its way into the modern world of Luchador wrestling.

Following a brutal attack in the woods, Nick (David Giuntoli) and Hank (Russell Hornsby) stumble upon a terrifying Wesen disease that may be the inspiration for the modern-day werewolf myth. Meanwhile, Adalind (Claire Coffee) is offered an uneasy alliance that may help her get back what she wants most. Elsewhere, Eve's (Bitsie Tulloch) investigation uncovers a surprising revelation.

When Nick (David Giuntoli) and Hank (Russell Hornsby) 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 (Bree Turner) is enlisted to help find the truth. Meanwhile, Eve (Bitsie Tulloch) takes bold steps to learn more about Capt. Renard's (Sasha Roiz) nefarious dealings.

The Faithful are targets as a minister uses his unique ability to increase his flock.

When the severed head of a young man is found under a bridge, Nick (David Giuntoli) and Hank (Russell Hornsby) find themselves on the case of Japanese Wesen acting on an ancient tradition of revenge. Elsewhere, Adalind (Claire Coffee) decides to go back to work at her old law firm and has her first facetoface with Eve (Bitsie Tulloch).

When a man is found dead with all of the bones in his body seemingly liquefied and removed, Nick (David Giuntoli) and Hank (Russell Hornsby) find themselves in the middle of a gruesome family arrangement. Meanwhile, Wu (Reggie Lee) deals with a crisis of his own and Hank reunites with his old flame, Zuri (guest star Sharon Leal).

Black claw closes in as Wu's primal instincts take center stage.

The balance of power is at stake.

A deadly showdown is on the horizon as Black Claw tightens its grip on Portland. Part 1 of 2.

A deadly showdown is on the horizon as Black Claw tightens its grip on Portland. Part 2 of 2.