When Casey discovers that Cappie is taking the same women’s studies class taught by Professor Freeman, she knows that it will complicate her relationship with Max. As a result, Casey decides to enlist the help of her new professor to help Max and Cappie get along. Meanwhile, Rusty starts his first elective class in Art History, and as a lucky bonus meets a pretty new transfer student, Jordan. Although he’s nervous about talking to her, he finds the courage to invite her to a KT party. But the night of the party he learns that some guys have all the luck, namely the new KT pledge, Andy. At the ZBZ house, Ashleigh hires a new hasher, Fisher, who draws a lot of attention from the sisters of ZBZ but, Fisher only has eyes for Ashleigh.
As Nathan, Claire, Peter and H.R.G. help Angela uncover her past, she reveals the dark secrets that have haunted her for years. Meanwhile, Mohinder learns of his father’s involvement in a long forgotten government operation.
A second Stan shows up because of Kronis' wormhole and Charlie must find and stop Kronis before people start noticing there are two Stans.
As the squad investigates a fatal shooting by an elderly woman, Leon Cooley’s execution date arrives. Grace, who has discovered that Leon once helped her sister and was invited to a family birthday party, struggles with whether or not to lend a hand towards stopping the execution. Grace also finds a connection with a young woman, who may also be getting visits from Earl. And Ham’s divorce is finalized, which he hopes will make things between him and Grace more permanent.
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.
A fellow comic book enthusiast's hitting on Penny leads to Leonard and Howard going to a bar's Ladies' Night.
Charlie's desperate to make sure Chelsea and Evelyn don't befriend each other following their first meeting.
Cameron postpones her vacation with Chase in order to ask House to accept the case of an environmental radical who collapsed at a protest with unexplainable symptoms. Although suspicious of her motives, House agrees. Since she pushed him to take the case so emphatically, House forces Cameron to take the lead and run many of the tests on the patient. Meanwhile, House is unsure of Wilson’s new healthy diet.
After Chuck's father Steve is kidnapped by Fulcrum, Chuck learns the only chance he has to find him is by putting his trust and life into the hands of the person he trusts the least—his ex-girlfriend Jill Roberts. Meanwhile, the Buy More team tries to sabotage Emmett’s corporate evaluation.
A man is killing people and posing them in Vodun (Voodoo) tradition. Castle's ex-wife announces her plans to move back to New York.
A murder case involving extreme plastic surgery leads Horatio to Ron Saris, who is alive and seeking revenge on Julia.
Blue Water Seafood (San Diego, Calif.) • Brandy's Restaurant & Bakery (Flagstaff, Ariz.) • Kuma's Corner (Chicago, Ill.) Guy Fieri meets cooks doing things their own way: In Arizona, a family place where the beef stew is made from tenderloin. In San Diego, a restaurant in a fish market run by two brothers. And in Chicago, a dive bar serving nearly two dozen different burgers named for rock bands.
Ted goes out on his own as an architect and hires an intern to help get things started, but the intern gets a little too close to others in the gang.
Breeding and training Alaskan Huskies as sled dogs with Martin Buser; revisit of dirty jobs in Alaska: Bird ringing common terns and Canadian geese ("Abandoned Mine Plugger"), fishing and processing of fish ("Floating Fish Factory"), cleaning up diesel spill in Dutch Harbor, Alaska ("Ice Salvage Crew"), incinerating toilet cleaner ("Bologna Maker"). The mail bag portion was taped at the Soo Locks on the floor of the MacArthur Lock in front of the upstream bulkheads.
The uproar over the king's break with the Catholic Church turns into a full-blown rebellion that comes to be known as "The Pilgrimage of Grace." Immobilized by an old jousting injury, Henry sends Charles Brandon to deal with the uprising and focuses his attention on the Lady Ursula Misseldon.
When Sam attacks Bridget, the other members of the Unit must hunt him down.
Walt's secret is in jeopardy when Skyler thanks Gretchen for paying for his treatment.
A strange monster is inhabiting Carl's pool, and the Aqua Teens attempt to get to the bottom of the mystery. It turns out to be a mermaid, who has sex with Carl, Frylock, and Meatwad, who all explode as a result of being impregnated by the mermaid. Master Shake, meanwhile, does not explode, despite describing his supposed sexual encounter with the mermaid to no one, as they have exploded. Special Guests Vincent Pastore provides the voice of Terry (uncredited) and Dana Swanson as the She Creature
Alex tries to help Hugh find his birth parent's after he finds out he is adopted. Meanwhile, Max's plan to get revenge on Alex backfires.
Mia has a session with Paul to apologize for her unprofessional behavior from the week before, acknowledging she intercepted his file when his attorney couldn't be there, in order to surprise and needle him. She reveals she's been having a year-long affair with her boss Bennet, who's married.