When Ted, Marshall, Lily and Barney crash a highfalutin party at a swanky New York apartment, Ted gets the chance to mingle with the snooty guests and show off his intellectual side.
Leonard and Sheldon compete for the attention of a famous female physicist.
A robbery-homicide prompts Beckett to invite Demming to assist on a case, giving Castle a ringside seat to their budding romance. When it becomes clear that the two men have very different ideas about how to proceed, the investigation becomes an unspoken competition for Beckett's attention, one in which each man races to solve the case, as Beckett referees between her two admirers.
When a suburban soccer mom is murdered, the CSIs uncover her family's dark past, while Delko continues his undercover mission.
When things get tense between Rufus and Will, Serena chooses to stand behind her father, while at the Rufus is made to feel like an outsider in his own family. Meanwhile, Jenny deliberately shares information with Will that may ultimately destroy Lily and Rufus' marriage. After many failed attempts, Chuck makes one last grand gesture to reconcile with Blair, hoping she will finally accept the fact that they are destined to be together.
Nathanstruggles to reach an increasingly despondent Haley, while Quinn leads Jamie on a Tree Hill treasure hunt. Julian shows his finished film to Brooke, and Clay is forced to deal with a deranged Katie.
Chuck struggles with disturbing dreams and now he believes his most recent dream predicts danger for a visiting head of state. General Beckman however, is unconvinced and assigns Chuck to meet with a CIA psychiatrist Dr. Leo Dreyfus. Meanwhile, Ellie gets surprising news and Anna returns to the Buy More to talk to Morgan.
The evolution of galaxies, from clouds of cold gas floating in space 13 billion years ago, to the vast gravitationally bound systems of today.
During a session with Dr. Nolan, House recounts the case of a woman who arrives at the Princeton Plainsboro emergency room with an unexplained illness and no recollection of who she is. While trying to solve the mystery of the woman's illness, House must also help her piece together her identity.
Alan tries for an intimate night at a hotel with his new girlfriend, while Charlie takes a different approach to obtain the "girlfriend experience"
Anya and Sav plan on going to the formal together, but when Sav's parents introduce him to his arranged marriage, everything changes.
Lupo and Bernard uncover a possible conspiracy to kill off wealthy cancer patients, so their inheritors don't have to pay an estate tax. However, legal roadblocks make the case difficult to prosecute.
K'nuckles' wish that everyone in Stormalong would disappear comes true, but he soon begins to regret his wish.
A woman struggles to find a balance between her dissociative identity disorder and raising a dysfunctional family.
As the main tournament begins, Team Ichigo faces off against the Country Girls, who only use wholesome organic ingredients in their creations.
The family waits for news about Hank. While Jesse covers at the lab, Walt attempts to placate Gus. After witnessing a disturbing outburst, Walt worries he and his family are in danger.
As the city celebrates the return of many displaced residents with another second line parade, Albert presses a Councilman to reopen housing projects and Davis recruits some local musicians to put out a campaign CD.
Lynette comes to a shocking realization about Eddie. Meanwhile, Angie discreetly relies on Gaby for help when Patrick threatens the life of her son; Bree offers Sam a generous payoff to walk away; and Susan and Mike's financial woes result in the ultimate sacrifice.