A woman takes hostages on Cloud Nine and demands that Adama turn over Sharon in order to avenge her husband's death at the hands of the Cylons.
In an effort to get to the bottom of things, Michael tracks Nellie down and hires her as a consultant for the Bluth Co. Unfortunately, Michael discovers Nellie's hands-on approach is more than he bargained for.
Gob goes to Iraq to perform his Christian magic act on the USO tour and ends up incarcerated. Michael learns George, Sr. sent Gob to Iraq to burn down the model home he built there, so Michael and Buster fly to Iraq to spring their brother from prison.
George, Sr. hires a new attorney who asks the Bluths to participate in a mock trial to help prepare them for the real thing. The attorney gets actor Judge Reinhold to preside over the mock case. Meanwhile, Buster fakes a coma to get out of testifying, and George Michael and Maeby participate in a mock wedding to entertain hospital patients. Back at the office, Michael discovers that he may have a long-lost sister named Nellie Bluth.
After returning home from Iraq, George Sr. is finally cleared of all charges, and Michael is relieved to be the head of a successful company for a change. The real brains behind the madness is revealed, and just as the family begins to celebrate their victory, a whole new set of problems emerge.
SG-1 is captured after a deal with the Lucian Alliance goes bad ... and the planet's Stargate goes missing. Meanwhile, a former System Lord attempts to rebuild his empire.
Earl's nervous about returning a laptop computer he stole from a college professor, mostly because he's uncomfortable around smart people. When the professor turns out to be a beautiful woman, he feels even more ill at ease, until she flatters him and asks him to speak about his list in front of her class. Meanwhile, Randy experiences fraternity life---and absolutely loves it.
The group travels to Las Vegas and plays strip poker, an infatuation develops between two contestants, and a couple is eliminated.
A half-naked woman is found half buried in the desert with a branding on her arm. She has no hair and is missing her right hand. The woman turns out to be Lady Heather's estranged daughter. The autopsy reveals that the woman was a victim of an experiment and starved to death. The team investigates the Betz Clinic where the deceased underwent a sleep therapy session for her insomnia.
An unexpected visitor puts Clemente in the middle of a domestic dispute. Meanwhile, Luka and Abby await test results on their unborn child; Neela struggles with her surgical elective and Pratt ends up with an unexpected suitor when he participates in a charity bachelor auction.
Ash and co have arrived on the island of the Battle Palace, which happens to be a massive jungle. Ash, eager to make his upcoming battle with the Brain as good as it can be, decides to put extra emphasis on helping his recently evolved Sceptile to be able to use its attacks. However in the process, Ash and Sceptile get separated from the group and meet with the Frontier Brain, Spenser. Will Ash and Spenser get Sceptile to be able to use attacks again?
After a child's kidney tumor disappears, his father credits the cure to water from a particular spring. Hood and Rachel rush to the scene to investigate - along with a horde of hopeful cancer patients. But if the water has such curative power, why does it seem to make so many people sicker?
Kaitlin prepares herself to head back to school. Ryan has doubts about his relationship with Marissa after helping out Sadie. Kirsten and Julie make plans for a Valentine's Day party.
When Leah Robinson goes missing after a confrontation with a young man at an art gallery, the team mvoes in to investigate and soon become suspicious of Leah, suspecting her of murdering young women that she believed to be involved with her husband, Ken. Ann isn't quite ready to take her romance with Jack public, and their relationship gets rocky when their different methods of handling the case tip off the suspect.
The Dunder-Mifflin staffers join in kindergarten-like festivities for Valentine's Day while Michael heads to New York City for a conference with the corporate heads. After showing the documenters a tour of his favorite city, Michael accidentally lets slip to the others at the conference that he and Jan hooked up, and he finds himself in hot water when Jan and the new CFO of Dunder-Mifflin hear the story. Back in Scranton, Pam becomes irked when she discovers that Roy hasn't gotten her anything for Valentine's Day, Dwight struggles to find a gift for Angela, and Kelley talks off Jim's ear about her rather desperate affections for Ryan, who is less than interested.
While Chris develops a crush, Julius and Rochelle have their work cut out dealing with all of Tonya's and Drew's admirers.
Chloe is possessed by the spirit of a young girl whose body is sealed in the Talon's walls, and goes searching for the girl's killer while Clark and Lois try to track her down.
Red lets Hyde in on a Valentine's Day secret; Christine opens up to Jackie about her love life; and Randy has big plans for a date.
Will Truman and Grace Adler are best friends living in New York, and when Grace's engagement falls apart, she moves in with Will. Together, along with their friends, they go through the trials of dating, sex, relationships and their careers, butting heads at times but ultimately supporting one another while exchanging plenty of witty banter along the way.