When Lily and Marshall can't decide on godparents for Marvin, they put the gang to the test to see who would make the best one.

Naomi and Max's honeymoon plans are put on hold after Alec informs Max that his whirlwind wedding has caused a public relations problem and lowered their tech company's stock price. Naomi decides to throw a high-class reception to reassure Max's investors that their marriage isn't a cause for concern. Adrianna discovers that club promoter Taylor, her one-night stand from Las Vegas, is partnering with Liam and Navid to re-launch The Offshore. Adrianna insists that their fling was a one-time thing, but Taylor suspects she has deeper feelings. At physical therapy, Annie and Dixon encounter fellow patient, Riley, who warns Annie to stop babying Dixon so he can learn how to manage on his own. At home, Dixon explodes on Annie and tells her that he's tired of her help. Liam offers to buy out Vanessa's portion of his movie contract, but Vanessa blackmails Liam to be her boyfriend again by threatening to show the police hidden camera footage of Liam. Silver invites Liam to be her date at Naomi's reception, but gets a surprising answer. Liam confronts Vanessa after the reception, but their argument is cut short by a shocking accident.

The fourth week of performances includes dances not usually featured on the show, such as disco and the bolero. Also: Paula Abdul serves as a guest judge.

An Alpha prisoner is kidnapped and interrogated by Rosen, who is still reeling from the death of his daughter; and Harken and Gary track down Skylar, but freeing her from Parish's clutches proves tricky.

Betrayed by his superiors and left for dead, XIII has definitely left the secret service in favor of a wandering life. In the hope of finding food and shelter, he went to Empire City and meets Betty Barnowsky, a beautiful activist involved in the fight against the major energy groups. Betty saving a police raid muscled XIII calls within the Veil, an underground organization led by Max Vargas. Veil attempts to expose openly the climate research center Hearpe (High Energy Auroral Refraction Protonospheric Emitter), whose real purpose is to influence the climate for economic reasons. Betty seduced both by itself and by his speech committed XIII agrees to help activists.

Tthe lawsuit against the hospital comes to a head as Angelo returns in time for the beginning of the trial. Meanwhile, Bay scrambles to return the money she "borrowed" from John to help Zarra. Daphne and Jeff struggle in their relationship; and Emmett, Nikki and Toby form a new band.

The battle round continues. Celebrity advisers are Billie Joe Armstrong, Mary J. Blige, Michael Buble and Rob Thomas.

Mordecai and Rigby tell scary stories during a drive to a Halloween party.

Joe is stuck in the middle after Ali finds out that Louis has a key to Joe's apartment and she does not.

Trying to prove herself in adult society, Serena hosts the Central Park Conservancy's big gala, of which she is now the newest Board Member, and she and Nate both learn something shocking about their significant others. Blair prepares to debut her new fashion line, but a rival from her past holds the key to her future. With the help of Georgina, Dan lands some meetings with publishers, but he must decide if he is willing to sacrifice his integrity in order to get his work published. Meanwhile, Chuck tries to persuade Amira to help him look into his father's past, even if it means jeopardizing Lily and Bart's relationship.

A trip to Rio de Janeiro proves stressful for Anthony, who is nervous about his wife, Ottavia, competing in a jujitsu match. To unwind, he enjoys the Brazilian cocktail caipirinhas and a pork sandwich in Ipanema; and later, learns about improvements made in the shanty town Rocinha. Finally, the Bourdains enjoy a home-cooked stew made with filet mignon, garlic, onion, tomato, farofa and feijoada.

Headquarters of the multi-national Synequanon are bombed, resulting in the death of innocents. Authorities and the media hold The Veil and XIII responsible and label them as terrorists. XIII is captured and tortured by a mysterious figure, who seems to know him intimately.

Max and Caroline attempt to take their cupcake business to the big leagues when they audition to be contestants on "Cupcake Wars".

When a peaceful ceremony turns deadly, Major Crimes and the FBI team up to track down a dangerous sniper. And Raydor negotiates a deal that even Provenza can get behind.

Mike and Molly decide the time is right for them to start trying for a baby. Meanwhile, Carl gets upset when he learns that Molly is still spending time with Christina after their breakup.

Castle and Beckett's plans for a romantic weekend in the Hamptons are interrupted when a dying man stumbles into Castle's backyard, collapsing into his pool. Unable to escape the lure of the investigation they join up with the small town's well-intentioned, but inexperienced sheriff to find the killer.

Doris McGarrett (guest star Christine Lahti) pays an unexpected visit to her son while the team investigates the death of a polo player who literally loses his head.

On the eve of the American election, XIII is hunted by powerful enemies: the Government, which now realizes he was never terminated; Synequanon, clamouring for revenge for the bombing of their headquarters; and by the mysterious figure who is after a set of equally mysterious letters. While evading these factions, XIII seeks to unravel the mystery behind the letters.

As the gang nears Neville and his men, their hopes of finding Danny grow until a shocking discovery threatens to impede their efforts. Meanwhile, orders from Monroe have upped the value of Danny's life and Nora connects with a fellow Rebel.

Will is accused of starting a fire. Meanwhile, the boys search for an elusive party.

J.K. Rowling

Cheryl Hines, Michael Kiwanuka

Evan Thomas

Jeff Goldblum, Sarah Paulson

After weeks of pastries, cakes and bread, three bakers have made it to the final. They now must face the most demanding of challenges yet as every aspect of their baking skill is scrutinised.

Hanssen is struggling to cope with the fallout from last week's interview. When a patient is then admitted who has contacted the press about his treatment at the hands of the NHS, Hanssen is determined to silence the critics.

Miss Audrey gets a mysterious illness, which starts a rivalry between Denise and Clara. Katherine enjoys the effect Peter is having on her life.

Ken is afraid that Cuckoo will send his beloved father-in-law Tony to an early grave.

Some recent muggings on campus leave the gang worried about their safety. JP is confined to his bed with a bad dose of the mumps. Kingsley makes an announcement which leaves Josie reeling.