Season 5 starts 18 months after Jack Bauer was forced to fake his own death and go underground. Now living under a false name and working in an oil field, Jack leads a quiet life, renting a room with a woman and her son. An early morning breach of national security, however, triggers the series' most shocking season opener yet, forcing Jack to reemerge. Once out in the open, Bauer quickly becomes the most wanted man alive while CTU commander Bill Buchanan and key operatives react to a series of escalating tragedies. Meanwhile, a shaky President Logan is forced to balance the national security emergencies with the signing of a significant arms treaty he believes will be his legacy.