Arlene Paredes

In "Once Upon A Time" Season 4, Episode 6, the Snow Queen (Elizabeth Mitchell) reveals a bit more of her history and intentions in Storybrooke. Secrets are revealed, and Belle (Emilie de Ravin) winds up on a cliff with Anna (Elizabeth Lail).

In "Revenge" Season 4, Episode 6, Nolan Ross (Gabriel Mann) tries to out-scheme Victoria Grayson (Madeleine Stowe). Charlotte Clarke (Christa B. Allen), meanwhile, dives deeper into the dark.

"Gotham" Season 1, Episode 6, titled "Spirit of the Goat," airs Monday, Oct. 27, on Fox. Viewers get to take a peek into Bullock's past in this week's new episode.

"The Mentalist" Season 7 premiere date has yet to be announced, but actor Tim Kang has dished some teasers for his followers on Twitter. Simon Baker, meanwhile, refuses to confirm whether the next season is indeed the last one.

"The Good Wife" Season 6, Episode 6, titled "Old Spice," airs this Sunday, Oct. 26, on CBS. Julianna Margulies' Alicia Florrick moves forward in her bid to become the next State's Attorney for Cook County. Chris Noth's Peter Florrick calls Alicia "fair and honest" in her first public appearance as a candidate.

"Once Upon A Time" Season 4, Episode 5, titled "Breaking Glass," airs Sunday, Oct. 26, on ABC. Emma Swan (Jennifer Morrison), Regina Mills (Lana Parrilla), and Queen Elsa (Georgina Haig) team up against the evil Snow Queen, aka Sarah Fisher (Elizabeth Mitchell).

"Revenge" Season 4, Episode 5, titled "Repercussions," airs Sunday, Oct. 26, on ABC. The war between Emily Thorne (Emily VanCamp) and Victoria Grayson (Madeleine Stowe) continues to rage in the Hamptons. Now that David Clarke (James Tupper) has gone public about his story, the war gets even more complicated.

"Grimm" Season 4, Episode 2, titled "Octopus Head," airs on Friday, Oct. 31, on NBC. This Halloween special has a treat for the avid viewers of the series: another fierce hexenbiest. Meanwhile, the "octo wesen" is still out there, but Nick and Trubel are not letting him go.

"Grimm" Season 4, Episode 1, titled "Thanks for the Memories," aired Friday, Oct. 24, on NBC. The series comes back with an un-grimmed Nick Burkhardt (David Giuntoli). Captain Renard (Sasha Roiz) flatlines in the ICU. The FBI gets involved. Newlyweds Monroe (Silas Weir Mitchell) and Rosalee (Bree Turner) could not bring themselves to enjoy a honeymoon. And a new character arrives in Portland.

The premiere episode of "Constantine" aired Oct. 24 on NBC. Reviews are mixed, and the ratings are less than stellar, but Matt Ryan playing the titular character shows some promise. Some viewers have criticised the manner by which John Constantine appears to be toned down version of DC Comics' Hellblazer.

"Grimm" Season 4, Episode 1 airs Friday, Oct. 24, on NBC. This premiere starts off with a very different Nick Burkhardt (David Giuntoli). A big twist unfolds during the wedding of Monroe (Silas Weir Mitchell) and Rosalee (Bree Turner), and now Captain Renard (Sasha Roiz) is fighting for his life, while Adalind (Claire Coffee) has sunken deeper into desperation.

"Arrow" Season 3, Episode 3, titled "Corto Maltese," airs Wednesday, Oct. 22, on The CW. It's Merlyn versus Queen in this week's new episode. Thea Queen is reborn as "someone else," while Felicity Smoak gets a new boss.

"The Flash" Season 1, Episode 3, titled "Things You Can't Outrun," airs Tuesday, Oct. 21, on The CW. This week's new episode welcomes Robbie Amell, who played Stephen Jameson on the defunct CW series, "The Tomorrow People."

"NCIS" Season 12, Episode 5, titled "The San Dominick," airs Tuesday, Oct. 21, on CBS. In the previous episode, Gibbs (Mark Harmon) -- and his famous gut -- give FBI Agent Leia Pendergast (Stephanie Jacobsen) a clear sign of approval. In this week's new episode, one of the show's favourite guest stars returns.

"Gotham" Season 1, Episode 5, titled "Viper," airs Monday, Oct. 20, on FOX. This week's new episode features "a new euphoric but lethal drug" that is wreaking havoc in Batman's home city. Watch the preview to see dark DC comics characters coming alive in compelling TV direction that is fit for the theatres.

Castle Season 7, Episode 4, titled "Child's Play," airs Oct. 20 on ABC. This week's new episode would remind viewers of how Stana Katic's Kate Beckett described Nathan Fillion's Rick Castle in the pilot episode: "He's like a 9-year-old on a sugar rush," Kate says of Rick in Castle 1x01.

"Revenge" Season 4, Episode 4, titled "Meteor," airs Sunday, Oct. 19, on ABC. This week's new episode is about a father-daughter reunion in extremely unusual circumstances. Emily Thorne and David Clarke are caught in Victoria Grayson's schemes, and things are not likely going to be in Emily's favour.

"Once Upon A Time" Season 3, Episode 4, titled "The Apprentice," airs Sunday, Oct. 19, on ABC. This new episode continues to unravel the story between Queen Elsa of Disney's "Frozen" and the Enchanted Forest "Snow Queen."

"Grey's Anatomy" Season 11, Episode 4, titled "Only Mama Knows," airs Thursday, Oct. 17, on ABC. Shippers watching the show may have been feeling a little low. Jolex, Calzona, and Merder are all unhappy. Japril has little screentime, and the characters are in a mess. No Cristina Yang, no sound mind in the hospital.

"Arrow" Season 3, Episode 2 airs Wednesday, Oct. 15, on The CW. Titled "Sara," this week's new episode tackles the repercussions of the final act in the season premiere. Sara, portrayed by Caity Lotz, is (spoiler alert) dead. Ra's Al Ghul and his daughter Nyssa are expected to emerge soon in Starling City in light of the tragedy.

"The Flash" Season 1, Episode 2, titled "Fastest Man Alive," airs Tuesday on The CW. This week's new episode is introducing a DC villain in the modern TV adaptation. Watch The Flash 1x02 promo video to see Harrison Wells (Thomas Cavanagh) telling Joe to refrain from doubting Barry Allen's abilities. The same promo shows a quick clip of Arrow's Felicity Smoak (Emily Bett Rickards).

"NCIS" Season 12, Episode 4, titled "Choke Hold," airs Tuesday, Oct. 14, on CBS. Tony DiNozzo (Michael Weatherly) meets a "new agent" in this week's new episode. Fans are speculating this new character could be part of the Ziva David (Cote de Pablo) closure.

"Castle" Season 7, Episode 3, titled "Clear and Present Danger," airs Monday on ABC. In this week's new episode, Stana Katic's Kate Beckett and Nathan Fillion's Rick Castle revisit the paranormal realm, or at least something like it. Some fans are speculating this is no "Time Will Tell," while others are hopeful.

Announcements are scarce on "The Mentalist" Season 7 premiere date, but actor Tim Kang is "pretty sure" Episode 1 is airing in January 2015. Meanwhile, the latest spoilers suggest a likely meeting among Patrick Jane and Teresa Lisbon's brothers.

"Once Upon A Time" Season 4, Episode 3, titled "Rocky Road," airs Sunday, Oct. 12, on ABC. Queen Elsa meets the Snow Queen, as announced by the voice-over in ABC's OUAT 4x3 promo video. Emma Swan is about to test her magic again as the season's first big bad emerges.

"The Good Wife" Season 6, Episode 4, titled "Oppo Research," airs this Sunday on CBS. Eli Gold seems to have succeeded in convincing Alicia Florrick to run for State's Attorney. Spoilers reveal the actor playing the role of a campaign specialist.

"Revenge" Season 4, Episode 3, titled "Ashes," airs this Sunday on ABC. Victoria Grayson gets darker, and leverages David Clarke's apparent lack of knowledge in her battle against Emily Thorne. It could be father against daughter in this week's new episode, unless more twists are coming.

"How To Get Away With Murder," "Scandal" Season 4, and "Grey's Anatomy" Season 11 air new episodes on ABC this Thursday, Oct. 9. Characters are changing, even in the new legal drama starring Viola Davis. Shonda Rhimes and company have a lot in store for the fans, but which character is running away with the biggest win? Only the viewers could answer, as drama gets deeper in all three series.

"Arrow" Season 3 premiered Oct. 8 on The CW, with an episode called "The Calm." Viewers get to see what happened to Oliver Queen (Stephen Amell) in Hong Kong through scattered flashbacks. This article recaps the highlights of the new season opener. Watch the promo video for the next episode to see if you're intrigued enough to look forward to Arrow 3x2.