CASTLE & BECKETT TRY TO SOLVE A BOMBING CASE IN WHICH FIVE PEOPLE WERE KILLED AT A PROTEST RALLY, ON ABC'S "CASTLE"

"47 Seconds" - When a bomb explodes at a protest rally killing five people, Castle & Beckett realize the key to solving the case is to reconstruct the 47 seconds prior to the explosion. Using video and witness accounts, they uncover the shocking truth about who planted the bomb. Christine Woods ("Perfect Couples") and Tim Guinee ("The Good Wife") guest star, on "Castle," MONDAY, MARCH 26 (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.

Guest Cast: Christine Woods as Leann West, Tim Guinee as Andrew Haynes, John Ruby as Mark.

"47 Seconds" was written by Shalisha Francis and directed by Paul Holahan.

""Castle" is broadcast in 720 Progressive (720P), ABC's selected HDTV format, with 5.1 channel surround sound. A TV parental guideline will be assigned closer to airdate.

For more information on "Castle," visit ABC.com/Castle