Castle season 4 moves us along with the episodes “Kick the Ballistics.” This time, Detective Ryan’s in trouble.

Castle in Kick the Ballistics, Photo Credit: ABC

Castle Season 4 – ABC

Castle Season 4 Episode 4
Castle Kick the Ballistics Summary

While investigating the mysterious shooting death of a young woman, Castle and Beckett face a cop’s worst nightmare when they discover that the gun used in the killing is Detective Ryan’s old service weapon – the one that was stolen by the serial killer, 3XK.

(What could that mean? Is someone trying to frame Detective Ryan?) Now with the clock ticking, the team must work to solve the murder, track down 3XK and retrieve Ryan’s gun before the killer strikes again, on “Castle,” MONDAY, OCTOBER 10 (10:01-11:00 p.m., ET), on the ABC Television Network. (ABC/VIVIAN ZINK) PENNY JOHNSON JERALD, NATHAN FILLION, STANA KATIC

To read about additional Castle episodes click on our link to our Castle Episode Guide