Danny Bruno

While investigating an accident site, Nick comes upon a bizarre and gruesome Wesen disease that is spreading quickly. A romantic day out for Monroe and Rosalee takes a dangerous turn when they encounter an infected creature that is out for blood. Meanwhile, Captain Renard gets a tip about a dangerous foreign fugitive who's made his way to Portland.

After the grisly murder of a familiar shop owner, Nick (David Giuntoli) joins forces with Monroe (Silas Weir Mitchell) to help solve the murder. When the shop owner’s sister, Rosalee (guest star Bree Turner), comes to town, Nick thinks he may have found a new ally in the creature world. Elsewhere, Captain Renard (Sasha Roiz) enlists Adalind (guest star Claire Coffee) to cast a spell on Hank (Russell Hornsby). Meanwhile, Sgt. Wu (Reggie Lee) unwittingly becomes entangled in Adalind’s dastardly plan. Bitsie Tulloch also stars.

As Nick (David Giuntoli) delves into the trailer’s weapons cabinet and his inner Grimm, the investigation of a dead construction worker leads him into a long standing conflict in the creature world. Sensing an unfamiliar threat, the suspect takes it upon himself to summon reapers to town to eliminate the Grimm once and for all. Meanwhile, Juliette (Bitsie Tulloch) insists that Nick invite Monroe (Silas Weir Mitchell) over for dinner, making for quite the interesting evening. Russell Hornsby, Sasha Roiz and Reggie Lee also star.

After a string of delinquent teens go missing, an old Wesen tale of an evil Santa who brings more than just a lump of coal may be the prime suspect. The investigation intensifies as Nick (David Giuntoli) and Hank (Russell Hornsby) take things a little too far. Meanwhile, Monroe (Silas Weir Mitchell) enlists Juliet (Bitsie Tulloch) to surprise Rosalee (Bree Turner) for their first Christmas together with unintended results. Elsewhere, Captain Renard’s (Sasha Roiz) tour of Europe brings him closer to tracking down Adalind (Claire Coffee).

When a local Reverend reports that his church has been robbed, Nick quickly learns that it's a Wesen church, and enlists Monroe to check for any suspicious activity regarding the shepherd's flock. Meanwhile, Nick and Juliette continue to figure out the rules of their relationship as a dangerous opponent lurks in the shadows with his sites on Nick.