Nate suspects that Juliet is keeping a big secret from him and decides to confront her. Blair schemes to undermine Chuck's newfound happiness. Dan finds himself torn between his feelings for Serena and Vanessa.
After moving in with Lyndsey, Alan continues to have a rendezvous with Melissa at Charlie's house.
Barney uses his best womanizing tactics to try to convince Ted to design the new GNB building; Robin drunk dials Don.
Mordecai and Rigby find a plate that they think would look good with cake, but when they don't have enough money for any, they use Skips' upcoming birthday as an excuse to throw a party and to eat the chocolate cake at the snack bar.
Section D is forced to welcome an FSB officer onto the Grid to help track down Aibek, a rogue nationalist from the ex-Soviet state of Azakstan. Aibek is in the UK to find the last known sample of the nerve agent 'Paroxocybin'. The chase is on, but will the team find a way to stop the nerve agent falling into the wrong hands without ruining Anglo-Russian relations? Meanwhile, Lucas's personal life takes a passionate turn.
An escalating gang war spills into the stands of a high-school football game, killing several people; an unlikely partnership arises.
When a coded document attracts Castle's attention, Beckett must steer the case back to the violent felons who populated their victim's world; when Beckett's ex-partner arrives, Castle must watch the relationship become romantic.
Mike dives into an amazing Michigan collection but Frank seems to have lost his picking mojo. The guys visit an incredible Wisconsin property that features a reconstituted vintage town. And, the only thing better than Ted’s quirky small town gas station is his one-of-a-kind home where everything is for sale. Frank senses engine trouble with the van while Mike ignores the signs and ends up on his hands and knees.
Sterling Cooper Draper Price employees resort to scuttlebutt after an agency wide meeting is called.
Kody and his teenage daughters throw a birthday party for his new fiancee Robyn, while first wife Meri struggles with feelings of jealousy
Kody heads south to court his potential fourth wife, Robyn. Meanwhile back home, the wives express their true feelings about their new possible sister wife as they make preparations for Christine's new baby.
After having music block, Miley finally becomes inspired by the sounds that she hears around the pier.
In an animation first, the episode offers the audience a behind-the-scenes look at the "filming" of the episode. When Cleveland and Donna attempt to celebrate their anniversary, their unruly kids and disruptive friends, including Donna's ex-husband, Robert, get in their way.
After a ridiculously pointless (and failed) lawsuit against their own band-mates and a devastating embarrassment in France, Murderface and Toki are suspended from the band. They later decide make a record label called "MurderTooth Records".
The Walkers attend a swanky launch party for Luc’s underwear advertising campaign where 14-year-old Paige falls in with the wrong crowd; despite several visits from Justin, Holly still struggles to remember the things that were once most important to her; Kevin is saddled with a runaway juvenile delinquent; and just as Nora very publicly admits that she’s taken a part-time job as a florist, she’s approached by a radio show producer with a job offer.
The CSI's must catch a madman causing havoc all over Miami and the team has to mourn one of their own.
As Mason goes in for his 6-month check-up, Kourtney realizes she wants another baby so her kids will be close in age like she and Kim were, but when she obsesses about getting pregnant, Scott thinks she's taking all the fun out of the process of trying. Meanwhile, Bruce has a hard time accepting that 12-year-old Kylie has male friends, and there's tension when she breaks the rule about inviting a boy up to her room.
After a successful election, Birgitte Nyborg looks set to become Denmark's first female prime minister, but allies and opponents do their best to block her way.