Castle Season 5 Episode 21 “The Squab and the Quail” airs Monday, April 22 2013 10:00-11:00 p.m., ET/PT on ABC.
Episode Synopsis: Castle Season 5 Episode 21 “The Squab and the Quail” – When Beckett is assigned to protect Erik Vaughn, a charming billionaire entrepreneur whose life is in danger, she’s forced to reflect on her relationship with Castle which has begun to plateau. Meanwhile, consumed with jealousy, Castle goes to extraordinary lengths to solve the case and separate the two of them, on “Castle,” MONDAY, APRIL 29 (10:01-11:00 p.m., ET), on the ABC Television Network.
“Castle” stars Nathan Fillion as Richard Castle, Stana Katic as NYPD Detective Kate Beckett, Susan Sullivan as Martha Rodgers, Molly Quinn as Alexis Castle, Penny Johnson Jerald as NYPD Captain Victoria Gates, Tamala Jones as Medical Examiner Lanie Parish, Jon Huertas as NYPD Detective Javier Esposito, and Seamus Dever as NYPD Detective Kevin Ryan.
Show Summary: When viewers first met Richard Castle — a famous mystery novelist and divorced father raising his teenage daughter, while being kept grounded by his Broadway diva mother — he was creatively blocked. But when the NYPD questioned him in connection with a series of murders staged to imitate crime scenes from his books, Castle found inspiration in NYPD Detective Kate Beckett, a bright and aggressive homicide detective with a fascination for odd and offbeat cases stemming from the years-old unsolved murder of her own mother.
Though they instantly clashed, sparks of another sort began to fly, leading both to danger and a hint of romance as Castle stepped in to help find the copycat killer. Once that initial case was solved, Castle and Beckett continued to investigate strange homicides in New York, combining Castle’s writer intuition and Beckett’s creative detective work.
Then, after four seasons of “will they” or “won’t they”, Castle and Beckett finally gave into their feelings towards each other in the much anticipated season finale. The Season Five premiere episode picks up the morning after, with Castle & Beckett facing new questions about their relationship. Was this a one-time thing? Are they a couple? Will this change their professional relationship? And how much can they afford to reveal to their NYPD co-workers? The fun and conflict escalate as the crime-solving dynamic duo navigate a whole new chapter in their lives.