Season
Season 8 Episode
- Season 4 Episode 1
- Season 4 Episode 2
- Season 4 Episode 3
- Season 4 Episode 4
- Season 4 Episode 5
- Season 4 Episode 6
- Season 4 Episode 7
- Season 4 Episode 8
- Season 4 Episode 9
- Season 4 Episode 10
- Season 4 Episode 11
- Season 4 Episode 12
- Season 4 Episode 13
- Season 4 Episode 14
- Season 4 Episode 15
- Season 4 Episode 16
- Season 4 Episode 17
- Season 4 Episode 18
- Season 4 Episode 19
- Season 4 Episode 20
- Season 4 Episode 21
- Season 4 Episode 22
- Season 4 Episode 23
Castle - Season 4
7.97 45 minutes After a serial killer imitates the plots of his novels, successful mystery novelist Richard "Rick" Castle receives permission from the Mayor of New York City to tag along with an NYPD homicide investigation team for research purposes.
