Stana Katic is Kate Beckett in the ABC series Castle; Season 7 Premieres September 2014
Stana Katic poses with the award she won for favorite dramatic TV actress for her role in the series "Castle" at the 2014 People's Choice Awards in Los Angeles, California January 8, 2014. REUTERS/Kevork Djansezian

"Castle" Season 7 airs Sept. 29 on ABC. Stana Katic goes on Twitter to tell fans one word: 'Enjoy!'

Spoiler alert: This feature contains spoilers on Castle Season 7. Season 6 spoilers are included, too.

"Remember tomorrow morning AWM [Castle creator Andrew W. Marlowe] & Amann are on Reddit doing Ask Me Anything!!! That should be interesting," writer (and Marlowe's wife) Terri Edda Miller shouted out on Twitter. Stana Katic, who is well-loved by fans of the series, retweeted the message to further engage fans on social media.

Here is a quick round-up of Castle Season 7 spoilers:

Stana Katic's Kate Beckett discovers a new side to Nathan Fillion's Rick Castle. She has always known he is not exactly an open book. One of his ex-wives has even warned Beckett of the mysteries in Rick's life. This time, she partially uncovers some of these long-kept secrets.

Castle Season 7, Episode 1 is called "Driven." This episode picks up from where things left off in the final act of the Season 6 finale - Castle's car in flames, Beckett looking devastated (and yet still lovely in her wedding gown).

Whatever it is that Beckett finds out, Beckett and Castle remain in-love in Castle Season 7. Still, some rocky road has been hinted by Castle showrunners. As if to reassure the fans, they also said, "we're not saying this is going to tear them apart."

"We have something planned that we're kind of excited about, and we hope that people come back and play along," Marlowe has said earlier.

Rob Bowman directed Castle Season 7, Episode 1 ("Driven"). He is the same creative force behind big Caskett Season 6 episodes, like the following: "In the Belly of the Beast," "Dressed to Kill," and "Room 147."

David Amann, the new head showrunner (so Marlowe could spend more time on other projects), penned the special episode.

"Season premiere tomorrow. Castle S7." Stana Katic tweeted. Seemingly confident in the seventh season opener, Stana punctuates the tweet with "Enjoy!"

Earlier spoilers have revealed that this Rick Castle mystery continues throughout this new season.

"Beckett is worried when Castle doesn't show up but soon she is called to an accident scene where Castle's car is engulfed in flames. Now Beckett must find who or what caused the crash," reads the Castle Season 7, Episode 1 synopsis on TV.com.

Watch Castle Season 7, Episode 1 on ABC.