Nash is out of action after Caitlin accidentally shoots him in the butt. Joe and Bettina do a joint investigation with FBI agents to bust a clever con-artist. Cassidy is…

Jack goes rogue to save a woman, and the White House needs a fall guy for Fayed’s success.

A missing computer circuit board: the Russians get wind of Chinese espionage, the White House must find a leak, and CTU interrogates an unlikely witness.

Russian ire worries the White House, while the Chinese take on CTU, and the damaged circuit board is in surprising hands.

Russia presses the White House, while Jack must try to thwart the Chinese and his oldest antagonist simultaneously.

Jack enlists the help of an autistic man in the search for Gredenko, and Sandra Palmer makes a fateful decision.

Jack baits Fayed with Gredenko, while the President faces a challenge to his office.

To find the remaining suitcase bombs, both Jack and the President set up bluffs.

The Chinese want Jack to give them Russian nuclear technology, and the President wants the Vice President’s resignation.

The search for Gredenko finds Jack hunted inside the Russian Consulate and a former President calling on his ex-wife.

CTU’s satellite tracking system is compromised as a bomb-carrying drone heads toward an unknown city. Meanwhile, US forces prepare for a nuclear retaliation on the Middle East.

Family troubles: Jack with his brother and father while Morris worries about his own brother.

The President meets with a known terrorist, while Jack searches for Morris, Fayed seeks a trigger, and Tom Lennox makes a choice.

Jack looks for a Russian national as his father plots with shadowy patriots. Meanwhile, the President and the Constitution may be in danger.

While Jack looks for Gredenko and tries to save Josh, White House intrigue deepens.

Jack and former terrorist leader turned peacemaker, Hamri Al-Assad, track a suspicious man to a self-storage facility.

While Jack has problems with Curtis, CTU discovers a nuclear threat and raids a terrorist warehouse, and a shocking explosion shakes LA.

Four more “suitcase nukes” are out there, and Jack’s only lead takes him to the home of his brother.

Jack finds himself confronting his father while the lead terrorist needs help if he’s to explode the remaining bombs.

A new U.S. President has negotiated Jack’s release from a Chinese prison so Jack can stop a series of terror attacks… with his life.

Can Jack and an unlikely ally stop a suicide bomber and track the architect of these acts of terror?

Jack returns to CTU to switch out the id card with a fake per Gaines’ orders. Palmer tries to convince Keith and Sherry to go public about the murder.

Jack delivers the briefcase to the assassin at Palmer’s press conference. Palmer wants to let the press know what happened with Keith and the murder.

Jack is taken into custody by the Secret Service after he stops the assassination. He quickly escapes in order to check on another name from the key card. Palmer tries…

Jack is on the run after escaping custody and rushes to intercept Ted Cofell before he leaves the city. Nina receives a phone call from Teri and tries to trace…

Director Green and Regional Director Ryan Chappelle question Jack about the day’s events. Nina takes Kim and Teri to a safe house after getting them medical attention. Palmer wants a…

Palmer and Jack finally meet for the first time and discuss Operation Nightfall. Nina talks to Teri about her and Jack’s past relationship after they reach the safehouse.

After handing out photos of all the assassins, Jack and Mason discover that one of Palmer’s campaign staff is in a romantic relationship with Alexis Drazen. Teri and Kim are…

Jack meets up with Teri at the hospital where they wait to talk to Janet about Kim. However, Janet is killed by Alan who is really working for Ira Gaines….

Andy witnesses a hold-up in the street and shoots at the get-away car. Det. Ross is assigned to fill in at the squad again.

The squad investigates two homicides: the immolation of a would-be musician and the stabbing of a socialite. The newest detective to the squad, John Clark, Jr., attempts to both learn…

Hoping to get over Jen, Dawson agrees to join Pacey and Billy in a boys night out and finds what he is looking for in another woman. Meanwhile Jen handles…