Nick investigates a fire-dancer who may be the woman responsible for a fire-related homicide.
While Nick and Hank look for rare coins that were the target of an robbery that ended in homicide, a friend of Aunt Marie's arrives with information for Nick about his family.
An underground fight club where monsters participate in blood battles is tied to a murder that Nick and Hank are investigating.
While tracking down a creature with a taste for heartbreaking, Nick discovers that he and Juliette may be in danger as word of his reputation as a Grimm spreads.
Nick investigates a black market organ-harvesting ring that caters to the supernatural creatures of Portland.
While Nick investigates a creature that may have start killing due to its abused childhood, the creature community begin to have doubts about Eddie's loyalties.
A prison escapee returns to Portland and seeks revenge on everyone who got him arrested. Nick notices his unusual strength and high tolerance of pain and calls Eddie to help put his rampage to an end.moreless
Nick and Hank investigate a murder in the forest which is connected to a missing-person case, and Nick has to ask Eddie for help when it turns out the missing person is a feral creature.moreless
The gang sets out to enact a plan at the reunion that will fix their tarnished image.
A fire reveals a longstanding family feud and brings Munroe face-to-face with his past. Meanwhile, Nick has to keep everything from going up in flames.
Hank and Nick check out the death of a teacher and discover that one of his students is involved: Nick discovers that the presence of a new Grimm is having repercussions on the creature community.moreless
The gang attends their high school reunion.
After a strange group of female deaths and disappearances, Nick sends Monroe undercover to spy on a hypnotic suspect. Meanwhile, a stranger shows up in Portland and tries to get revenge on Nick for the death of a reaper, but he'll have to get past Captain Renard.moreless
Nick and Hank investigate a flash mob incident that resulted in a bizarre homicide involving bee venom. While working the case, Nick ends up having to protect the hexenbiest that tried to kill him and his aunt at the hospital.moreless
A barbaric family history is revealed when Nick and Hank investigate a case of breaking and entering. Meanwhile, Nick assigns Eddy to look after Aunt Marie.
Nick Burkhardt's life is completely transformed when his family's legacy is revealed to him and he discovers that he is a Grimm, a monster hunter who can see the creatures for what they really are.moreless
Sykes reveals his plan to get revenge on the Regents and recover the Collodi Bracelet, a plan that will cost one agent their life.
While Myka and Pete deal with a zombie plague spread by an unknown artifact, Claudia tries to reach Jinks.
While Claudia and Myka investigate the case of a woman who can disintegrate anyone who angers her, Pete and his mother deal with their issues after being reunited.
A mystery organization launches an attack on the Warehouse Regents, trapping them in a skyscraper. While Myka and Artie try to get them to safety, Pete and Claudia try to find the artifact responsible.moreless
The agents and Claudia team up to free Douglas Fargo and another gamer from a virtual reality fantasy world. Meanwhile, Steve and Artie try to steal an artifact painting in New York but run up against FBI agent Sally Stukowski.moreless
Castle and Beckett investigate the murder of Miss Illinois, a contestant in a beauty pageant, who was found strangled during the rehearsal for "Baron's All-American Beauty Pageant." As the investigation goes on, they find out that several people had motive to kill the victim.moreless