Thirteen brings her one-night stand to the hospital after the woman has a seizure. However, the woman admits she slept with Thirteen just so she could get to House and have him diagnose her condition. Meanwhile, House continues to pay Lucas to spy on Wilson.
A local priest may be protecting drug dealers; Dutch and Billings close in on attempted cop killers; Corrine learns uncomfortable truths about Vic.
The team investigates a woman that re-appears after weeks of being missing with a rare disease. She also inexplicably causes pain and death to the people she meets. During the investigation, dangerous level of radiation are detected. Walter obsesses about cotton candy; Peter strikes a deal with Nina Sharp; and a truth about Olivia is discovered.
This episode demonstrates the production processes for microphones, hot tubs, artificial turf, beer steins.
The team discovers a long festering secret which sets off a deadly chain of events when they investigate the disappearance of the teenage son of a Secret Service man.
Cassie and Charles's love is threatened, and someone is lost forever.
Mike helps saw down a giant concrete wall at an auto dealership in order to make way for a new wash bay. Then he heads to a sheep farm where he tries shearing and castrating a sheep and is treated to a pate of Rocky Mountain Oysters.
The new Sam decides to take a trip to Africa in hopes of providing some help to people who desperately need it, but then chickens out when she finds out what it's going to take to get there.
A 43-year-old man takes a nap at his parents house, and is later found dead in bed. The man had several conditions that put his health at risk, including morbidly obesity, high blood pressure, and sleep apnea. However, Dr. G is hesitant to jump to conclusions when her autopsy findings dont quite add up, so she opts to wait for the toxicology results before closing the case. A 53-year-old woman is found dead on her couch. The woman was obese and a smoker, her son notes that she had suffered an episode of intense eye pain the day before, and Dr. G finds signs of trauma on the womans lower body. With many potential suspects, only Dr. Gs autopsy will narrow down the cause of death.
Villains Knox and Daphne are on a quest to recruit Hiro and others to the Pinehearst fold. Angela and the Company are paralyzed from recent events. Peter goes to Pinehearst searching for answers but is stunned to learn who the founder is. Claire and Sandra go on a mission to save Meredith from the clutches of Doyle, a villain with abilities to control people mentally and physically. Nathan and Tracy try to trace their origins with Mohinder's help.
Tim and Tarquin's family has outgrown their house. The lack of bedrooms and angled walls on the main floor have them wondering what to do. Designer Hilary and Realtor David want to help the family with their housing problems. Hilary and her team will renovate the major problem areas of the house to make the family love it again. David will search for houses that will convince the family to leave. And after all the work is finished, Tim and Tarquin will have to make a decision about their house. Will they Love It? Or List It?
Lauren and Audrina travel to Cabo for Brody's birthday, but Audrina's problems with Justin threaten to ruin the festivities. Back in LA, Spencer gives Stephanie's new boyfriend a hard time over dinner.
A fraudulent astrologer named Martin Trueman is hit by an extraterrestrial body and begins to impress everyone with his uncanny predictions. However, what he predicts for Sarah Jane is far from pleasant...
While Sarah, John and Cameron track another name from their list, they accidentally cross paths with T-1001. Meanwhile, a woman who Derek once knew in the past surprises him by appearing in the present.
While Horatio and the team investigate a murder at a trendy store, Horatio finds that Julia's instabilities have turned her into a ticking time bomb.
Lincoln works to retrieve the final card, which is being held by the General. Michael and Self are forced to work with Gretchen. Meanwhile, Roland continues to be berated for losing the transcribing device in Las Vegas.
Nathan and Haley must team up to help Jamie deal with a school bully. Meanwhile, Lucas and Peyton continue to adjust to life as a live-in couple. Elsewhere, Mouth tries to get his old job back.