Set in New York City, "Day Eight" unfolds amidst the shadows of the Statue of Liberty and the United Nations as President Allison Taylor, alongside new chief of staff Rob Weiss, negotiates international security with Omar Hassan, a determined Middle Eastern leader visiting the U.S. on a peacemaking mission. As the new day begins, an upgraded CTU operates under the command of M.B.A.-schooled, razor-sharp head honcho Brian Hastings, who supervises quirky Chloe O'Brian, expert data analyst Dana Walsh and systems analyst Arlo Glass. Cole Ortiz, an ex-Marine who wants to follow in Bauer's footsteps, leads field operations while Agent Renee Walker returns with an agenda of her own.