WHEN A TERRORIST ENTERS THE COUNTRY WITH THE INTENT OF TAKING AMERICAN LIVES, MAC WASTES NO TIME RESPONDING TO THE SITUATION -- HER WAY -- ON ABC�S �COMMANDER IN CHIEF�

�First� Do No Harm� � In the middle of the announcement of her new National Security Advisor, Anthony Prado, Mac is caught off guard by breaking news of a terrorist smuggling explosives across the Canadian border. The way in which Mac and her Attorney General deal with the situation pits them squarely against each other, and Nathan Templeton takes great pleasure in publicly second-guessing Mac�s every move. Meanwhile, it�s Halloween, and Amy � who desperately wants to go trick-or-treating like a normal kid � is disappointed to learn that, due to security concerns, she may have to settle for a party this year instead. And when Rod as First Gentleman finds himself fodder for late-night comics, it hits son Horace especially hard, on �Commander In Chief,� TUESDAY, OCTOBER 25 (9:00 -10:00 p.m., ET), on the ABC Television Network.

�Commander In Chief� stars Geena Davis as Mackenzie Allen, Donald Sutherland as Nathan Templeton, Harry Lennix as Jim Gardner, Kyle Secor as Rod Calloway, Ever Carradine as Kelly Ludlow, Caitlin Wachs as Rebecca Calloway, Matt Lanter as Horace Calloway and Jasmine Anthony as Amy Calloway.

Guest cast TBA.

�First� Do No Harm� was written by Anya Epstein and Dahvi Waller, and directed by Dan Minahan.

�Commander In Chief� is broadcast in 720 Progressive (720P), ABC�s selected HDTV format, with 5.1-channel surround sound and Spanish subtitles via secondary closed captioning.

A TV parental guideline will be posted closer to airdate.