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World famous mystery writer Richard Castle finds unexpected inspiration when Detective Kate Beckett questions him about a series of murders that based on his books.
Time is running out for Castle and Beckett this week. They must put aside any differences with Agent Fallon and, simply put, save the city.
Adrian Pasdar debuts on Castle this week, playing a federal agent. He's brought in to take over the investigation of a massive conspiracy.
Jason Wiles guest stars this week as a former friend of Castle's... and the main suspect in a case. This places Castle and Beckett on opposite sides of the investigation.
A lottery winner is killed in brutal fashion this week, resulting in a number of suspects. In related news, Martha inherits money she thinks she doesn't deserve.
The lead detective on Beckett's mom's murder cases resurfaces this week. A subsequent investigation leads back to a decades-old conspiracy.
Carrie Genzel guest stars on this episode of Castle. She portrays a former model and the wife of a billionaire. Gilles Marini also plays a key role.
Laura Prepon shows up on this special episode of Castle. It focuses on Castle's book and the actress that will help bring it to the big screen.
A body is found floating in the East River on this episode, which leads Castle and Beckett into old tunnels and passageways of New York City. Once there, the partners find a secret from the days of Prohibition.
An astrophysicist is found dead this week, leading to a case that keeps pointing back to the impossible: alien abduction. Lyle Lovett guest stars.
A subway worker is found dead shot to death this week. While working this case, Castle and Beckett uncover the violet abduction of a young boy and must unravel the motives behind this kidnapping.