Adama stages a boxing tournament on the Galactica to help the crew relax. The competitive atmosphere sets off a brutal match between Kara and Lee. Flashbacks from New Caprica reveal the origin and nature of their dispute.

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 he? Apollo shows off the new drinking establishment on Galactica, Joe's Bar, to Tyrol. Apollo thinks about Kara and wonders whether his marriage to Dee is worth saving.

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 dismisses such beliefs, Number Six suggests that the followers may know more about his true nature than Baltar does himself.

William "Husker" Adama prepares for his rookie combat mission as a Viper pilot.

A moment in Galactica's hangar rattles young Adama's nerves before his first combat flight.

Vipers and Raiders face off in a brutal firefight above a remote world defended by the Cylons.

Losing his Viper is just the start of rookie William Adama's problems today.

Downed rookie pilot William Adama discovers a gruesome Cylon secret project.

William "Husker" Adama struggles to free human prisoners from the Cylon lab.

Adama witnesses the rise of a new Cylon threat and gets unexpected news from the Galactica.

The untold story of Lee Adama's first mission as commander of the battlestar Pegasus begins as Lee asks Kendra Shaw to be his executive officer. Kendra—who's tough but troubled—was considered an exemplary officer by the Pegasus's original commander, the late Admiral Helena Cain.

Admiral William Adama assigns the Pegasus to find a Raptor that vanished during a scientific-research mission. At the Raptor's last known location, an armada of antiquated Cylon Raiders piloted by Centurions attacks the Pegasus. The captive Sharon identifies the old-fashioned machines as "guardians," a particular group of Cylons who experimented on humans during the first Cylon War.

Kara Thrace seeks her own path in the search for Earth while the Cylons face the threat of sentient Centurions. A member of Galactica's crew learns a dark secret about a loved one.

The dying President Roslin and the aggressive Viper pilot Kara Thrace try to accept the new terms of the relationship with the Cylons.

With President Roslin missing along with the cylon base ship a new president must be decided on. Galactica goes on a search for the missing base ship and the Galactica crew members that were on board.

The rebel Cylons and the Colonial humans react to Hera's kidnapping while the physical condition of the Galactica continues to deteriorate.