Castle and Beckett are thrust into the world of ex-cons and escorts. Meanwhile, Alexis has a private chat with Beckett about something that she's keeping from her father.
After his relationship with Robin ends, Barney dusts off his "playbook" to help him back into the dating scene
After House’s medical license is reinstated, he reclaims his role as Head of Diagnostics in time to treat Hank Hardwick, an adult film star admitted to Princeton Plainsborough for pulsating eye pain. Meanwhile, Cuddy is reminded that Princeton Plainsborough is not conducive to healthy personal relationships.
Jon wins a turkey in a competition, which he plans to cook for Liz. However, when it is delivered it is still alive. Garfield disguises himself as a turkey to get rid of the real one.
Jon finds his old Accordion but Garfield doesn't like him playing it nor the very sound of it. Garfield tries to get rid of it, but in the end, the Accordion breaks and Jon gets bagpipes instead.
The Lightman Group helps a teenager who believes he was abducted as a baby, while Loker and Torres try to figure out what caused a deadly stampede at an electronics store.
Samuel learns just how powerful he can become and takes dangerous measures to reach his full potential. Meanwhile, as Tracy begins to lose control of her ability, one of her own comes in harms way. Elsewhere, Sylar continues his battle with Matt.
Miranda takes French class and Tango lessons so Gary will see her in a sexual light. Things don't quite go to plan.
When the CSIs investigate who or what caused a horrific car accident, both drivers' darkest secrets are revealed.
The 1991 murder of a 14-year-old girl in foster care who was a promising rapper is investigated. The probe reveals the victim lived in a gang-infested neighbourhood and was recently placed, along with her sister, with new foster parents.
Dexter wonders if his father's Code is truly the right path, and hopes to get answers by accompanying Trinity on an out-of-town road trip to Tampa; Debra discovers that her single-minded pursuit of Trinity has blinded her to the true identity of her assailant.
Hank's in for a hedonistic night to remember when Jackie and two stripper friends arrive at his doorstep, unannounced. The next morning, before Hank can escort his new friends from the apartment, Charlie shows up with a verbally abusive Rick Springfield. Hank’s forced to hide the hung-over party girls all over the house after Jill and Felicia pay surprise visits. The charade reaches its boiling point when Dean Koons arrives on the scene, resulting in a messy catharsis by fire.
Andy and Sophia treat a car crash victim named Victor dying from ALS who asks to be to taken off of life support so his organs can be used to save others. Meanwhile, David tends to a foster parent with pulmonary hypertension who refuses admission to the hospital.
Larry is miffed at both Marty Funkhouser's sudden presence on set during the Seinfeld reunion's table read and text messages from the nine-year-old daughter of a co-worker. Leon poses as a dead doctor to alleviate Michael Richards' concerns over his Groat's Disease diagnosis.
Ojai's newest wine is submitted at a local festival; Justin and Rebecca keep life-changing secrets from themselves; Nora has a crush on a younger man; Sarah and Luc may not be as compatible as they thought they were.
Dethklok join a tribute band to reignite their passion for Rock'n'Roll.