In the last episode entitled "Montreal," Castle still didn't know what happened to him when he disappeared, and someone offered him the truth. The episode also showed Castle's villain from the past.

This week, "Castle" will feature something that will tickle the taste buds in an unordinary way. Entitled "Clear and Present Danger," season 7 episode 3 is something new for the TV series and it will definitely be a fun ride compared to the usual "Castle" episodes fans have seen throughout the seven seasons.

According to the official synopsis: "When a pool shark is murdered by an unseen force, Castle and Beckett uncover evidence that the killer may have paranormal powers. Meanwhile, Castle and Beckett attempt to get their lives back to normal following his disappearance."

Castle and Beckett will be tracking down a killer who might have the power of invisibility. This would surely make for a new experience for "Castle" fans to watch. But the question is, where is this supernatural plotline coming from?

According to CarterMatt.com, there are no exact answers as to how the new Castle mythology started in Season 7. But the new season is supposed to be about Castle and Beckett moving on with their life and acting as though the horrible previous two months never happened. Nonetheless, these story arcs will catch up with the favorite "Castle" characters eventually.

Hollywood Hills reports the guest stars in the episode, including Nick McCallum who will play William Fairwick, Tate Ellington as Henry Wright, Tom Wright to take on the role of Fats Shepherd, Maya Stojan to play Tory Ellis, and Chad Michael Collins as Tom Talmadge." Chad Gomez Creasey and Dara Resnik Creasey wrote the episode, and Kate Woods directed it.

It will surely be one interesting and intriguing episode in "Castle" season 7. "Clear and Present Danger" will air on Oct. 13 at 9 p.m. on ABC.