Jacqueline's daughter Ashley's behaviour continues to cause trouble for her mum. Meanwhile, Caroline does her best to stay out of her daughter's relationship problems, Teresa and Danielle's daughters are both invited to model in NYC Fashion Week, and Danielle extends an olive branch to her former friends to celebrate Christine's success.
With only four hours left, a rogue Jack Bauer stops at nothing to determine who is behind the day's most devastating events, and he uncovers an unexpected lead.
Examining the birth of stars, and how their creation changed the cosmos for ever, leading to planets and life itself.
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"
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.
Best Food Ever: Bodacious Bakeries takes viewers on the sweetest cross-country tour of American treats. From peanut butter French toast to moist cupcake cocktails to the "creamy seduction cookie", it's sure to leave viewers craving these sugary bites.
Finn and Jake temporarily get magic powers from an evil wizard, but are tricked into helping stop a comet.
K'nuckles' wish that everyone in Stormalong would disappear comes true, but he soon begins to regret his wish.
Anya and Sav plan on going to the formal together, but when Sav's parents introduce him to his arranged marriage, everything changes.