"24" is a TV thriller presented in "real time" with each minute of airtime that corresponds to a minute in the lives of the characters. "24" employs fast-paced and complex stories, and often contains unexpected plot twists. Though each day's events typically revolve around thwarting an impending terrorist attack, each season is made up of various interwoven story threads. These may run for just one hour, but more usually run over several hours. These typically involve investigations of leads on terrorists, tracking suspects, and averting attacks. The exact objective of the day evolves over the course of the season as the antagonists adapt, contingencies arise, and larger scale operations unfold.
Jack Bauer becomes further involved in preventing an assassination attempt on visiting president Omar Hassan. As the crisis continues to escalate, the crew at the newly upgraded CTU is challenged by some unexpected complicated circumstances. Meanwhile, tensions run high when an explosive event jeopardizes international security.
While the newly-upgraded CTU is challenged by some unexpected and complicated circumstances, Jack Bauer becomes even more involved in preventing an upcoming assassination attempt on Omar Hassan, a visiting President. Meanwhile, international security is jeopardized by an explosive event, and Jack is reunited with agent Renee Walker.
Four explosive hours after being unwillingly drawn back into action, Jack Bauer reteams with a risky Renee Walker to track some very dangerous leads. Meanwhile, back at CTU, a desperate Dana Walsh faces tense and untimely circumstances, and emotions escalate when President Taylor learns of a larger looming threat that jeopardizes the peace accord with President Hassan.
Undercover Agent Renee Walker confronts her painful past when attempting to broker a deal with a ruthless, but very well-connected German arms dealer. When CTU shifts its focus from the perilous circumstances surrounding Jack and Renee, lead analyst Dana Walsh comes up with a plan to quell her situation and Chloe O'Brian puts Arlo Glass in his place. As Jack and Renee’s undercover mission takes unexpected turns, the Hassan family turmoil has President Taylor reeling as the peace agreement is jeopardized.
Despite averting the assassination attempt on foreign peacekeeping leader Omar Hassan, Jack Bauer's day intensifies when he is forced to go further undercover to secure the unsecured enriched nuclear materials. As international delegates reconvene at the United Nations, President Taylor's goodwill comes into question and CTU races against time to assist with the mission.
President Taylor pressures CTU for progress while Jack's perilous plan has operatives panicked. As the scope of the looming threat expands, the dynamic at CTU changes and the ongoing crisis worsens.
As Jack's day enters the early morning hours, the nation remains vulnerable, and President Taylor presses on with her international peace process. With the possibility of colossal failure facing CTU, attention turns to who is to blame, and things get personal when operatives take matters into their own hands.
As the terror threat continues, the Hassan family turmoil fans the flames of the increasingly urgent situation. When Jack closes in on a person of significant interest, a tense meeting between President Taylor and Omar Hassan takes an unexpected turn as the global security stakes are raised.
The clock races into the middle of the night when the threat of a devastating nuclear attack accelerates as Jack tracks an informed terror suspect who has an explosive strategy. Back at CTU, a key player grapples with being demoted, and the day takes an unexpected stressful turn when pesky parole officer Bill Prady enters the picture.
While Jack and Cole team up in the field to shield New York from the calamitous threat, a hostage situation has CTU completely stressed out. Meanwhile, unrelenting parole officer Prady presses on in his investigation, and unexpected developments send the Hassan family into a major tailspin.
As the imminent terror threat nears and CTU copes with the day's explosive events, the onerous NSA intervenes. Conditions at CTU remain tenuous and field operatives find intense action when Jack Bauer leads them on a risky mission. Meanwhile, Chloe and Dana make game-changing moves.
President Taylor's vision of global peace has been foiled over the last 13 hellish hours, and the situation worsens when the imminent threat of mass destruction clarifies. As her idealistic nature becomes a point of contention, she tasks Jack Bauer with a crucial mission, and advisor Ethan Kanin returns in the heart-stopping.
As dawn breaks over New York, President Taylor endures a game-changing setback as the threat of mass destruction looms. Meanwhile, President Hassan makes a shocking decision that surprises his loved ones. But before long, trusted confidantes will become enemies of the state, and it's only the beginning of the betrayals that are to come as the race against time ticks over two pulse-pounding hours.
President Taylor undergoes a game-changing setback; President Hassan makes a decision that shocks his loved ones; trusted confidantes become enemies of the state.
As the country reels from the day’s devastating events, stalwart President Taylor attempts to resuscitate the peace agreement, the cornerstone of her administration. Much to her dismay, she is forced to solicit the services of disgraced former President Logan. Meanwhile, Jack Bauer makes an unprecedented emotional move that triggers the unthinkable, and back at CTU, Chloe is charged with new responsibilities.
With only seven hours left in the series' final harrowing day, Jack Bauer sets out to avenge the tragic life-changing events that he has endured. As things become even more personal for Jack, he heads to CTU for an intense meeting after learning of a devastating development. Meanwhile, on the verge of achieving peace on a scale that has eluded the world for generations, President Taylor becomes deeply conflicted when former President Logan sits down at the bargaining table.
With only six hours left, the clock races toward the series finale as President Allison Taylor faces impossible choices and much to the dismay of CTU, she enlists a private security firm to complete a sensitive task led by Mark Bledsoe. Meanwhile, Jack calls in a favor to his old friend Rick Vickers before he embarks upon a crucial mission of his own.
With only five hours left, the clock races toward the climactic series finale as Jack stops at absolutely nothing to avenge the emotional setback of losing his beloved partner Renee Walker. Meanwhile, the administration attempts to keep the historic and pivotal peace agreement on track as undermining forces surface.
With only four hours left, a rogue Jack Bauer stops at nothing to determine who is behind the day's most devastating events, and he uncovers an unexpected lead.
As the clock ticks toward the climactic series finale, three hours remain and a ruthless Jack Bauer is on an unwavering mission to uncover the truth, which only complicates circumstances for President Taylor as she prepares for a signing ceremony. Meanwhile, President Logan comes face-to-face with a formidable foe, and Chloe leads CTU on a high-stakes collision course with Jack Bauer.
Emotions run high as the harrowing day climaxes with resolute President Taylor closing in on a world-changing peace treaty and a vengeful Jack Bauer taking matters into his own hands for one last and unforgettable job.
After four years off the grid, Jack is apprehended in London by the CIA – on the very day that President James Heller arrives. As the President faces political pressure over a US drone program run from a UK-based base, only disgraced agent Kate Morgan suspects that Jack's capture was all too easy.
Jack and Chloe are on the trail of a hacker who might lead them to whoever is behind an assassination attempt on President Heller... but Kate is hot on Jack's trail.
As the hunt continues for Jack Bauer, the terror threat is intensifying, much to the chagrin of the CIA and Kate Morgan. Across town, President James Heller prepares to address Parliament in an attempt to heal recent wounds with the British, and to preserve his legacy. Meanwhile, Margot - a homegrown British terrorist seeking to avenge her husband's death - proves she is willing to make any sacrifice for her mission.
With the threat escalating, Jack Bauer heads to the U.S. Embassy as the CIA closes in on him. Elsewhere, Margot asserts her authority with unthinkable force, President Heller faces members of Parliament and Kate Morgan takes matters into her own hands.
As Jack deals with unforeseen circumstances, an unlikely duo joins forces to prevent an impending attack in London. Meanwhile, homegrown terrorist Margot Al-Harazi reveals her demands - revenge for her husband's death in a U.S. airstrike. Also, President Heller orders a lockdown of military airspace, but it may be too late.
As the smoke clears after the devastating events of the first five hours, tensions between President Heller and Prime Minister Davies boil over, and one of them decides to take matters into his own hands. In the meantime, Jack proposes a plan to locate Margot by using someone unexpected as his unsuspecting bait. Back at the CIA in London, Jordan raises suspicions about Kate's husband.
Following an intense and deadly shootout, Jack and Kate are in a race against time to save the life of a key player tied to the imminent terror threat. Meanwhile, Jordan Reed is ordered into the field on a perilous mission. Then, after President Heller engages Margot to end her savage attacks, he faces an unthinkable, game-changing decision.
Jack Bauer and President Heller endure the unthinkable to thwart the terror attacks of mastermind Margot Al-Harazi. Meanwhile, CIA agent Jordan Reed faces a life-or-death struggle and Kate takes drastic measures to track down Margot before it's too late.
Jack and Chloe have a plan in place to eliminate the terrorist threat before any more attacks rock London. With no time to spare and lives on the line, Jack and Kate pursue crucial leads in an attempt to gain the upper hand on the incredibly intense circumstances. Meanwhile, key players reveal their true colors. intense circumstances. Meanwhile, key players reveal their true colors.
Jack Bauer's harrowing day crescendos as he pursues final leads at all costs. The emotional toll of the day's events escalates when Kate Morgan learns the truth about her husband and Audrey confronts Boudreau about his duplicity. Making matters incredibly worse, the scope of the terror threat widens and the potential devastation reaches new heights.
Audrey pursues diplomatic channels to try to prevent a full-scale war. Meanwhile, Jack Bauer leads Kate Morgan and Mark Boudreau on a mission to locate their target before it's too late and the world is changed forever.
The clock ticks toward the final seconds of Jack Bauer's most heroic day. As the world teeters on a terror plot of mass proportions, Jack and the team reunite one last time to avert an imminent international crisis. With little time left and the fate of the free world on the line, Jack is faced with an unthinkable and grave decision. Lives will be lost and the American administration will grapple with the day's most devastating news as the clock stops.
Jack and Renee Walker pursue Dubaku through the streets of Washington, D.C., with a little cyber help from Chloe. Meanwhile, the first family and the FBI are left reeling from incidents involving turncoat agents.
Not even at the halfway point of this hellacious day, two planes have collided outside of D.C., there has been an attempt on a chemical plant in Ohio, the President’s husband’s life has been threatened and the nation remains at risk. When Dubaku’s evil plan escalates to his boss, General Juma (guest star Tony Todd), the stakes are raised and steadfast President Taylor faces a deepening foreign policy dilemma.
Juma and his men take the White House by storm, killing most of the Secret Service and trapping Taylor and Jack in the saferoom. His efforts to extract her are thwarted until he is informed that the President's daughter is in the White House as well. Renee and Larry try to convince Vice President Hayworth to let them rescue the President, but Hayworth will not budge until the FBI can produce proof that she is not in imminent danger.
The siege on the White House reaches an explosive end after Jack and Bill work together to try and save President Taylor. Meanwhile, Jonas Hodges makes moves to cover his own tracks, starting with Ryan Burnett.
Malevolent mastermind Jonas Hodges emerges as Jack Bauer's latest adversary as the long, terrifying day ticks deeper into the night. Jack yields results from a surprise meeting, and the fight to avert additional terror attacks continues.
Olivia Taylor, the President’s daughter, becomes increasingly involved in the day’s events, and the administration reels when a high-ranking official delivers devastating news.
The game changes for Jack Bauer, and the FBI is forced to collaborate with other federal agencies. As the threat intensifies, the administration shakes things up and seeks a new perspective.
As the day stretches into the middle of the night, Jack and the FBI formulate a plan to prevent further terror attacks. Events take an unexpected turn when the politics surrounding the administration expand beyond the White House.
Jack Bauer endures the elements and fights on to prevent an attack that could change the country forever. As the catastrophic blow to the nation nears, Tony Almeida operates from the field and Kim Bauer, who was last seen in Season Five, returns. Meanwhile, the stakes are raised when the administration is faced with a blackmail scenario.
As the nation remains vulnerable, Jack Bauer endures the worsening pathogen pain. The FBI deals with recent deadly developments while matters involving key players takes this day into a unexpected direction.
The nation remains vulnerable as Starkwood mastermind Jonas Hodges (guest star Jon Voight) remains at the epicenter of the mounting terrorist threat. Meanwhile, the FBI and the administration scramble to provide security and justice, and Jack Bauer questions a key suspect
While lives remain on the line, an emotional Chloe copes with the declining conditions. With only a few hours left in Jack Bauer’s day, the situation worsens when the politicking inside the White House corners the divided administration.
Innocent lives remain in the line of fire as this terrifying day draws to a close. Jack is faced with an unthinkable situation while his perpetually imperiled daughter, Kim (guest star Cuthbert), gets involved. Meanwhile, the imminent threat stokes the heated rivalry between Chloe and Janis.
Jack Bauer is forced to help Tony escape from custody, only to find Tony plans to use Jack to reconstitute the pathogen. Aaron Pierce and Ethan Kanin work together and discover Olivia's role in Hodges' murder. Kim Bauer takes down her captors, and works with Renee Walker to find her father.
Presented with the evidence of Olivia's actions, President Allison Taylor is forced to make a decision between her family and the Presidency. Thanks to Kim Bauer, Janis, Renee and Chloe are able to save Jack and arrest Tony before he can kill Alan Wilson. With Wilson refusing to talk and Jack about to die, the fight is no longer in the field, it's for the hearts and souls of Jack and Renee.