• David Giuntoli (L) and Bitsie Tulloch attend the 'Grimm' season four panel during Comic-Con International 2014 at the San Diego Convention Center on July 26, 2014.

David Giuntoli (L) and Bitsie Tulloch attend the 'Grimm' season four panel during Comic-Con International 2014 at the San Diego Convention Center on July 26, 2014. (Photo : Getty Images/Ethan Miller)

"Grimm" Season 6 is set to tackle a long-awaited yet heartbreaking plot in upcoming episodes. Latest spoiler news teased of a potential complication in Nick's (David Giuntoli) relationship with Adalind (Claire Coffee) given Juliette's (Bitsie Tulloch) impending return.

Nick will soon reunite with his former love Juliette in the upcoming "Grimm" Season 6 episode 7. Juliette will start to emerge from the internal shell that her alter ego Eve (Tulloch) has magically pushed her into.

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Titled "Blind Love," the said episode will feature an emotional moment between Nick and Juliette. A scene in the promo clip for the upcoming episode, as posted on Spoilers Guide, showed Nick's shocked yet pained expression when Juliette admitted that she still has feelings for him.

The teary confession will also include a kiss scene between the two characters. However, Juliette will initiate the action by pulling Nick's head towards her for a long kiss.

Meanwhile, viewers can also expect to see a lavish birthday celebration for Monroe (Silas Weir Mitchell) given Rosalee's (Bree Turner) surprise getaway treat that also includes their friends. Unfortunately, the happy moment will not last due to a revenge plot that will threaten Nick's life.

Moreover, Eve will get a surprise visit from a mysterious dark force, while Renard (Sasha Roiz) bonds with Diana (Hannah R. Loyd). However, the father-daughter moment will be interrupted by the police captain's former ally who is looking to get even with Renard.

In other news, Giuntoli previously talked about Nick's love triangle with Adalind and Juliette in an earlier interview with TV Guide. The actor commented that although Nick and Adalind have a stable relationship at the moment, Juliette's reappearance will make things very difficult for his character.

"Grimm" Season 6 episode 7 will be released on Feb. 17, Friday, on NBC. Watch the teaser clip below: