Castle has a lot in store for us this fall. From a surprising murder suspect to a sci-fi convention, the show’s fall episodes have plenty going on. What exactly? Check out this video from Monday’s episode, “Probable Cause,” as well as official episode descriptions of the Castle episodes airing in October and November.

WARNING: There are Castle season 4 spoilers in this article. Most of them, however, are official spoilers released by ABC. So you don’t need to worry your pretty little heads over them.

Is Castle a Killer?

That’s the central question posed in the next episode of Castle, “Probable Cause.” The evidence all points in the direction of the novelist, but could Castle actually do such a thing? Based on what happens in this video clip, the police seem to think their friend might indeed be a murderer.

Beckett is not liking this one. She is not liking this at all.

Fall Episode Descriptions

Want to know more about “Probable Cause” or any of the other Castle episodes airing this fall? Check out the official descriptions from ABC for a few clues.

“Probable Cause” — Monday, October 29 at 10pm
While investigating a shocking ritualistic murder, Beckett and her team uncover surprising evidence linking Castle to the killing. As the evidence against him mounts, loyalties are tested, and when surprising revelations come to light, Beckett begins to wonder how well she really knows her new lover and partner of four years. 

“The Final Frontier” — Monday, November 5 at 10pm
When a body is found at a sci-fi convention, Castle and Beckett are warped into the heart of fandom — a world of egotistic celebrities, diehard costumed fans and enough drama for two galaxies. Armin Shimerman (Star Trek: Deep Space Nine), Ed Quinn (Eureka), Christina Moore (True Blood), Erin Way (Alphas) and Chris McKenna (One Life to Live) guest star in this episode, which is directed by Jonathan Frakes (Star Trek: The Next Generation).

“Swan Song” — Monday, November 12 at 10pm
When the lead guitarist of a rock band is murdered, the documentary crew that were following the band turn their cameras on Castle, Beckett and the team as they try to solve the case. The result is a documentary style episode of “Castle,” which offers us a unique glimpse at our characters as they navigate a world that goes far beyond the rock & roll stage. Thomas Howell (The Amazing Spider-Man, Southland) guest stars as the leader of a cult that the victim belonged to and wanted to leave.

“After Hours” — Monday, November 19 at 10pm
In the aftermath of a disastrous “Meet the Parents” dinner, a bickering Castle and Beckett are sent to retrieve the only witness to a murder, but they get ambushed and are forced to take the witness on the run. Stranded in the middle of the night in a bad part of town, with no phone, badge or gun, Castle and Beckett must find a way to protect him from a team of mobsters — that is, if they don’t kill each other first.

Is Richard Castle a murderer? How cool will the sci-fi convention episode be? Which episode looks like the most fun? Leave your comments below!

(Images courtesy of ABC)

Laurel Brown

Senior Writer, BuddyTV

Laurel grew up in Mamaroneck, NY, Grosse Pointe, MI and Bellevue WA. She then went on to live in places like Boston, Tucson, Houston, Wales, Tanzania, Prince Edward Island and New York City before heading back to Seattle. Ever since early childhood, when she became addicted to The Muppet Show, Laurel has watched far too much TV. Current favorites include ChuckModern FamilySupernaturalMad Men and Community. Laurel received a BA in Astrophysics (yes, that is possible) from Colgate University and a PhD in Middle Eastern Studies and History of Science from Columbia University before she realized that television is much better than studying.