Spoiler: Details for April 29th Episode

Note: This is the additional episode that was ordered by ABC recently, while it will air as episode 21 it is also being referred to as episode 24.

Original Air Date: April 29, 2013

Writer: Rob Hanning   Director: Bill Roe

Summary:  Beckett’s life is on the line when she steps on a pressure sensitive bomb. While the team searches for a way to disarm the explosive, Castle distracts Beckett by arguing with her about who fell for whom first.

Guest Cast

• Allan Louis – Capt. Frank Mahoney
• Adam Rose – Mike Boyer

Castle 5x20 Promo "The Fast And The Furriest"

When Castle and Beckett find giant footprints at the site of a vicious murder, the team is forced to confront the unlikely theory that Bigfoot is the killer. But as they trek into the world of primate research, big game hunting and mythological creatures, they realize that finding the man (or beast) responsible may put them on the endangered species list.

Castle celebrates 100th episodes

Източник: Photos - Castle 100th Episode Party

Castle

Castle is an American crime drama television series, which premiered on ABC on March 9, 2009. The series is produced jointly by Beacon Pictures and ABC Studios. Created by Andrew W. Marlowe, it primarily traces the lives of Richard Castle (Nathan Fillion), a best-selling mystery novelist, and NYPD Detective Kate Beckett (Stana Katic) as they solve various unusual crimes in New York City. Detective Beckett is initially infuriated at the thought of working with a writer and goes to great lengths to keep him out of her way. However, the two soon start developing feelings for each other. The show focuses on the romantic tension between the two lead characters, and also on the unsolved homicide of Beckett's mother.

Източник: Castle (TV Series) - Wikipedia