TIME IS RUNNING OUT FOR CASTLE AND BECKETT TO PREVENT A CITY-WIDE CATASTROPHE, IN THE CONCLUSION OF A TWO-PART STORYLINE OF ABC'S "CASTLE"

Adrian Pasdar Guest Stars

"Countdown" (Part 2) -- With time running out, Castle and Beckett must put aside their differences with Agent Fallon (guest star Adrian Pasdar) to avert a city-wide catastrophe, on "Castle," MONDAY, FEBRUARY 28 (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, Ruben Santiago-Hudson as NYPD Captain Roy Montgomery, Tamala Jones as Medical Examiner Lanie Parish, Jon Huertas as NYPD Detective Javier Esposito and Seamus Dever as NYPD Detective Kevin Ryan.

Guest Cast: Adrian Pasdar as Agent Mark Fallon, Victor Webster as Josh Davidson, Lochlyn Munro as Kevin McCann, Baher Soomekh as Nazihah Alhabi, Monica Kenna as Charlene McCann.

"Countdown" was written by Andrew W. Marlowe and directed by Bill Roe.

"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. Viewers can also follow the show via http://facebook.com/Castle and Twitter: Castle_ABC