The girls go out to find a new home. When they find one, the guest list for the housewarming party is subject to more than just one fight.
Alan makes wedding plans for Evelyn and Teddy, while Charlie figures out how to get more acquainted with his future step-sister.
Jean is severely injured, which causes Kris and Junior to postpone their marriage plans.
Serena's world descends into chaos when a former friend, the evil Georgina Sparks returns to town. Nate connects with the last person he expected, Vanessa. Blair hatches a plan to sabotage her biggest rival, Nelly Yuki. Meanwhile Serena goes out with Georgina, but things get so bad that Serena thinks someone spiked her non-alcoholic drink. Jenny develops a crush on a dog-walker, Asher Hornsby, who might be her ticket to permanent popularity.
Barney and Marshall have a discussion about "The Bro Code" because Barney has broken it and wants advice.
House copes with a patient whose symptoms conceal a greater problem, but spends much of his time dodging Cuddy's orders to give performance reviews, and fighting with Amber over who gets to spend more time with Wilson.
When delivery of another collectible leads to Penny's lashing out at Leonard, he decides it's time to give up his habit, much to his friends' protestation.
Robert fails a drug test but is determined to prove his innocence. Meanwhile, the Hammersley uncovers a smuggling operation by Samaruian rebels which is designed to destabilise the government.
Nathan and Haley throw a birthday party for Jamie. Deb hired a clown, and Haley is not happy with it since it's a creepy one. Lindsey returns to Tree Hill for Jamie's birthday, which gives Lucas hope that the relationship will be rekindled. When Dan arrives, Deb's mood swings fast and in the meantime Brooke and Peyton attend the party with baby Angie.
Paige and Griffin's relationship isn't easy--especially with some disturbing secrets.
While visiting four of the Cook Islands, Scott is challenged about his commitments to the year trip while Justin learns from the locals how to live off the land. That is until his love for animals is challenged by "the head hunters" – the local school boys, who take the guys on a traditional pig hunt.
Inside an Indiana dairy farm, Mike learns how to milk a cow and use a blow torch to clean her udders. Then, Mike gets the inside scoop on how to inseminate a cow. Finally, he gets an up-close look at fatherhood as he helps deliver baby calves.
Sam is going to Todd's photo exhibit, but doesn't want to go alone, so she asks Craig, whom she thinks is a complete stranger, to join her. Sam soon gets the hint that they've met before and things doing go smoothly. Kevin discovers a demeaning picture of Sam in Todd's photo collection.
After a body is found in a sinkhole, the team's investigation into the victim's death leads them to a robbery where the target is keeping a shocking secret.
The accidental excavation of a human hand leads the cold case squad to the cover-up of a major incident.
A woman's car is run off the road and she is killed, but her baby miraculously survives the accident. Booth and Brennan go to the woman's hometown to try to find out who's responsible for running her car off the road. Bones, with help from Booth, takes care of the baby until the team finds out who killed the mother.
Nick Cheney was once a successful director, but he has now ended up mainly directing low-budget films. We meet him as he is directing The Scarlet Pimpernel at Magna Manor. A former convict, Jed Norris, has been hired as a security guard on the film set, and one night he finds the director dead, beheaded by the use of a guillotine.
The team re-opens the case of a woman who allegedly committed suicide in 1962 when the victim's granddaughter comes forth with evidence that the note found on the death scene -- then thought to be the suicide note -- was not written in the victim's handwriting.
Chris' attempt to be a "cool" kid lands him in hot water when he is caught with cigarettes and is suspended from school. Kicking him while he's down, Tonya blackmails him when she finds out before their parents do. Meanwhile, Rochelle decides to teach Julius a lesson.