The investigation into a runway model’s death leads Horatio to his son and his nemesis.

A family is in Miami vacationing from Canada when one of their sons is killed.

When the team is investigating the murder of a probation officer and a hostage situation, Horatio learns that the main suspect could be his son.

Stalkers turn an innocent teenage swimming star into a sex symbol plasting photos of her over the internet. When following her it is discovered Horatio may be in danger after…

Horatio’s son goes missing when a prison transport is attacked. Upon learning the identity of Kyle, he is targeted in order to get at Lt. Caine, who must find him…

In order to prevent a war with Russia, the White House orders a trade of Jack’s nephew for the circuit board, and puts Jack in custody so he cannot stop…

As Baltar’s trial comes to a conclusion, key members of the fleet discover that they may be the Final Five Cylons. Tigh attempts to decipher the strange music he is…

Jack rushes toward his nephew and his oldest antagonist, as a Chinese sub and F-18s race for the same destination. Chloe faints. Can Jack find any peace?

Kara continues to have dreams about Leoben Conoy and the mandala she painted at her old apartment on Caprica. While on patrol in her Viper, she encounters a Cylon Heavy…

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

When Baltar’s representatives face assassination attempts, Adama asks Lee to protect Baltar’s lawyer. After taking on the assignment, Lee seeks to play an active role in Baltar’s defense.

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

Baltar’s trial testimony threatens the very stability of the fleet. Lee assists Romo Lampkin in Baltar’s defense. Some in the fleet begin to feel that Baltar is divine. Though he…

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

Amid a heated labor dispute, Tyrol asks the imprisoned Baltar for advice. Seelix becomes involved after she is turned down for flight training.

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.

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.

The Sagittarons allege that a doctor is discriminating against them. As Helo investigates, he becomes concerned that the doctor may even be murdering patients. Meanwhile, Athena unwittingly brings Hera to…

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

Chief Tyrol and his wife Cally become trapped in a malfunctioning airlock. Adama remembers his late wife Carolanne as he marks his wedding anniversary. His relationship with President Roslin continues…

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

Jack’s search takes him to the Russian Consulate, while the Vice President contemplates a sweeping executive order.

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.

D’Anna/Number Three squares off against Adama over the Temple of the Five. Athena asks for Helo’s aid in her plan to rescue Hera. On the algae planet, Apollo orders Dee…

Now on board Galactica, Baltar faces charges of treason. He contemplates suicide with the help of Number Six. Questions remain about his true identity. Is he a Cylon or isn’t…

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

Jack’s search takes him to the home of an old enemy, while a bomber slips into the White House.

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.

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?

After Vic disowns him, Shane turns to the Armenian mob for help. Vic gets more involved with the San Marcos investigation, while Dutch and Billings are able to track down…

Vic learns about his true status at the Barn from Hiatt. Shane gets involved with the daughter of an Armenian mob boss. Claudette begins to question Hiatt’s loyalty.