第 4 季 共 22 集
播出时间：2014年10月25日
第 1 集 Thanks for the Memories
播出时间：2014年10月25日
The team scramble to find a cure to get Nick's ability back.
第 2 集 Octopus Head
播出时间：2014年11月1日
The Gedächtnis Esser continues to steal memories and Captain Renard's mother visits him in the hospital to try to save his life. Meanwhile Wu confronts Nick about Trubel and Nick and Adalind share a psychic connection.
第 3 集 The Last Fight
播出时间：2014年11月8日
Nick's power loss aftermath showed that the changes are far more than anticipated, Elizabeth, Monroe and Rosalee look for the cure. Nick and Hank call on Trubel to help out on a case.
第 4 集 Dyin' on a Prayer
播出时间：2014年11月15日
A rabbi raises a golem to protect his nephew, but he can't control it. Elizabeth successfully recreates Adalind's spell, but it still requires a key ingredient.
第 5 集 Cry Luison
播出时间：2014年11月22日
A woman claims a persistent talking wolf drove her to madness; Juliette and Nick weigh the potential costs of getting back his abilities, and the threats against Rosalee and Monroe get worse
第 6 集 Highway of Tears
播出时间：2014年11月29日
With Monroe and Rosalie are dealing with a growing problem from Wesen purists, Nick and Juliette must decide if a normal life is really what they want.
第 7 集 The Grimm Who Stole Christmas
播出时间：2014年12月6日
Nick and Hank are called to investigate a bizarre string of home invasions that lead to an even stranger Wesen phenomena. Monroe has a very special Christmas surprise in store for Rosalee. Meanwhile, Truble comes to a life changing realization that will affect everyone.
第 8 集 Chupacabra
播出时间：2014年12月13日
A traveler manages to bring a blood‑sucking legend with him as he shows up in Portland. Nick and Hank investigate the gruesome trail of “El Chupacabra.”
第 9 集 Wesenrein
播出时间：2015年1月17日
The Wesenrein abduct Monroe and plan to destroy his marriage to Rosalee... permanently. Meanwhile, Nick and Hank show Wu the truth of the Wesen, and Juliette deals with a new face in her mirror.
第 10 集 Tribunal
播出时间：2015年1月24日
After Monroe’s abduction by the Wesenrein, Nick gathers the whole team, including Wu, to track him down and return him to Rosalee. As the search intensifies, Juliette learns more about her new reality as a Hexenbiest.
第 11 集 Death Do Us Part
播出时间：2015年1月31日
Monroe and Rosalee are finally off on their honeymoon, but that doesn't mean trouble isn't stirring in Portland. Nick and Hank are called to a shocking homicide at an abandoned residence many Portland locals think is haunted, even the survivors swear a ghost committed the murder. Meanwhile, on the heels of Juliette’s startling revelation Captain Renard seeks the help of a mystical woman from his past.
第 12 集 Maréchaussée
播出时间：2015年2月7日
Nick and Hank investigate a series of murders that lead back to the Wesen Council and a mysterious bounty hunter. Elsewhere, Juliette’s meeting with Henrietta brings about more disturbing news than she was expecting. Meanwhile, Adalind and Viktor make their way back to Portland.
第 13 集 Trial by Fire
播出时间：2015年2月14日
When an arson case looks to have Wesen origins, Nick find himself reluctantly having to ask an old foe for help. Elsewhere, Viktor teaches Adalind the effectiveness of well-played diplomacy. Meanwhile, Juliette finds herself in a confrontation sooner than expected.
第 14 集 Bad Luck
播出时间：2015年3月21日
Nick and Hank investigate a murder victim with his foot cut off, and stumble onto a disturbing Wesen take on the "lucky rabbit’s foot." In an effort to help, Monroe and Rosalee go undercover. Meanwhile, the fallout from Adalind and Juliette’s showdown still has Nick reeling and sends him on a path that leads to Henrietta.
第 15 集 Double Date
播出时间：2015年3月28日
Nick and Hank are called to investigate a one night stand turned deadly when a man finds himself in the middle of a very bizarre love triangle. Captain Renard hopes Monroe and Rosalee can help him deal with recurring episodes of phantom bleeding. Meanwhile, Adalind makes a discovery that might turn the tables in her favor and Juliette makes a big decision that could change the course of her relationship with Nick.
第 16 集 Heartbreaker
播出时间：2015年4月4日
A cyclist's homicide introduces Nick and Hank to a Wesen with a tragic fatal touch. Captain Renard and Adalind learn the Royals have stepped up their efforts to find their child, and another member of the Royal family is introduced. Meanwhile, Juliette ponders the idea of embracing what she's become as opposed to fighting it.
第 17 集 Hibernaculum
播出时间：2015年4月11日
Nick and Hank are called to investigate a rare Wesen that leaves its victims frozen solid. Meanwhile, Juliette starts to feel that she is losing her humanity as she seeks to get revenge on Adalind. Elsewhere, Captain Renard continues to suffer from mysterious bleeding and visions while Monroe works toward coming to grips with the Wesenrein incident.
第 18 集 Mishipeshu
播出时间：2015年4月18日
A homicide leads Nick and Hank onto the dark and mysterious path of a local Native American power quest. Meanwhile, Juliette's erratic behavior lands her on the wrong side of the law. At the spice shop, Rosalee and Monroeare on a mission and call on Captain Renard for help.
第 19 集 Iron Hans
播出时间：2015年4月25日
Nick and Hank investigate a homicide they discover is linked to a wesen rite of passage.
第 20 集 You Don't Know Jack
播出时间：2015年5月2日
A string of homicides have the press asking Captain Renard if a Jack the Ripper copycat has arrived in Portland. While dealing with the investigation, Nick, Hank, Monroe and Wu deal with a situation they never expected. Meanwhile, Adalind and Rosalee must work together on a last ditch attempt to fix Juliette's condition. Elsewhere, Juliette decides to help her new ally even if it means hurting those around her.
第 21 集 Headache
播出时间：2015年5月9日
While investigating a grisly murder, Nick and Hank get closer to uncovering the identity of the serial killer while Wu's life is put in grave danger. Having turned down Monroe and Rosalee's offer, Juliette solidifies a new alliance as she works to get her revenge. Elsewhere, Trubel makes a surprising return to Portland.
第 22 集 Cry Havoc
播出时间：2015年5月16日
On the heels of a shocking discovery, Nick is hell bent on getting revenge and taking the fight to the Royals with help from Trubel. Meanwhile, Juliette's alliance continues to lead her down a dark path.
