When the new season begins, Castle is wrestling with how to repair his relationship with Beckett, while struggling to finish his soon-to-be-published bestseller, Heat Wave. But circumstances force the pair back together to investigate the mysterious murder of a man found dead, tangled in the limbs of a tree.
Blair, determined to have her Queen status at college, starts her first day at NYU along with Dan and Vanessa. However, Georgina, who was assigned as Blair's roommate, sets out to ensure that she does not retain her title. Serena gets ready to move into her dorm at Brown, but has a fight with Chuck before hand. This leads her to search out Chuck's enemy, Carter, to help her get even with him. Meanwhile, Nate and Bree's relationship continues to grow despite the tension their relationship could cause between their families.
While recording her new album, Haley must work to save Red Bedroom Records and enlists Mia's help to do so. Meanwhile, Brooke, with Millicent's help, searches for the new face of her clothing line; Clay defends Nathan as the scandal continues to grow; Julian and Brooke decide to move in together; and Dan returns to Tree Hill with a new bride in tow.
When Sheldon learns the guys tampered with his expedition data he got from the arctic, he leaves to Texas in disgrace. This results in the guys following him, which threatens Leonard's hope for some romantic time with Penny and the guys' friendship with Sheldon.
House is detoxing at a mental hospital and being held against his will by his attending physician, so he concocts an escape plan, aided by his roommate and a visitor named Lydia.
After sharing a kiss at the beginning of the summer, Robin and Barney are unsure how to handle their mutual attraction. After some consideration they tell the gang they have decided to remain just friends, but secretly continue seeing each other. They are able to get away with their secret romance for a couple months, but are discovered when Ted, Marshall and Lily walk in on them together. They explain to the gang that they are happy with their casual relationship, and didn’t want to complicate it by defining it. This is unacceptable to Lily, who pressures them to label their situation, and ultimately locks them in Robin’s room to force them to address it. Meanwhile, Ted is anxious about his first days as a professor at Columbia, which is made worse when he shows up at the wrong class and starts his lecture.
Claire and her new friend Gretchen investigate the death of Claire's roommate Annie, while Noah comes to Peter for assistance. Samuel and Edgar recover the compass, Hiro realizes his new destiny, and Matt is tormented with mental images from a dangerous foe.
Turmoil surrounds the Suttons as the rivalry between Tay and Nate Ray comes to a head, Lizzie must choose whether popularity is more important than what is right, the police continue closing in on Charles who begins to doubt Cassie's support, and Jenn may risk her marriage by voicing her problems with Dana and Eddie's friendship.
Casey patrols non-alcohol party night during Dry Weekend on campus until she and Evan unknowingly eat some special brownies. Meanwhile, Grant's old high school girlfriend surprises him with a visit, and Rusty seeks academic help at a book signing.
When Eve's new boyfriend Stefan is being vague about his past she puts her skills to use and uncovers something she rather wouldn't have. Unsure about the next step she turns to Boyd for advice, initially he promises support. But once the facts become clearer Boyd and Eve want to follow a different path.
Drama eyes a part on Melrose 2009 and asks Lloyd if he can get him out of his current gig on Five Towns. Still irate over Lloyd's job offer, Ari goes to war against Lloyd to get Drama out of his contract. Citing their trust issues, Ashley asks Eric if she can read his e-mails. Turtle feels guilty about his love triangle, of sorts, with Jamie-Lynn and a UCLA co-ed.
Jane decides to help Judge Madeline Stone with her love life and ends up suing the match making service she uses for fraud. Meanwhile Grayson and Kim are on a case with dueling psychic sisters who refuse to share in the family business. Fred also makes an unexpected return.
Larry attempts a pre-emptive breakup with an ailing Loretta, and learns with Jeff that you can’t make an “empty gesture” to a Funkhouser.
Doc Martin is struggling to maintain his life as a GP, after his wedding day disaster with school headmistress Louisa. She has left the village, and he is starting to question whether this is where he wants to stay, until an old friend turns up.
Miley and Lilly find out that Oliver has diabetes, and they try to play food police at Traci's birthday party. (Due to negative feedback, the episode was re-edited from the original titled "No Sugar, Sugar" that aired in some countries.)
A well-meaning struggling writer decides to lead a sort of double life by pretending to be a private detective, using the methods he read about in old detective novels.
Sterling Cooper receives a surprise visitor; Sally has been spooked by something (or someone); and Joan receives some shocking news.
New servant Cedric muscles in on Merlin's position as Arthur's right-hand man, and turns the prince against his loyal friend. Merlin is convinced the slippery newcomer is up to something, and he is right - Cedric is a conman and a thief who is after a magnificent jewel, recently unearthed in a tomb far beneath Camelot. Little does he know, his precious prize is more dangerous than he could possibly imagine. Camelot has never been more vulnerable, but how can Merlin make things right when, thanks to Cedric, he might have lost Arthur's friendship for good? Merlin faces the prospect of turning to the one creature he swore he would never trust again - The Great Dragon.
When Carly, Sam, and Freddie defeat a famous TV chef in a cooking challenge, the chef gives up cooking, quits his show, and refuses to come out of his bedroom. Spencer tries to make his vision of the future a reality.
Poker After Dark is an hour-long poker television program on NBC. The show made its debut on January 1, 2007, and was cancelled on September 23, 2011 following the "Black Friday" criminal case, which involved major sponsor Full Tilt Poker as one of the defendants. For its first two seasons, both of which originally aired in 2007, the show was presented by Shana Hiatt. The host for season 3 was Marianela Pereyra, and Leeann Tweeden took over starting with season 4. All seasons have contained voice-over commentary by Oliver "Ali" Nejad. The program returned to American television over the NBC Sports Network on March 5, 2012 with previously aired repeats, with unaired episodes from season 7 airing for the first time beginning June 4, 2012. NBCSN schedules the show on weeknights at midnight, although the start time varies due to overruns by sporting events.