Hadley's prison cellmate comes to her for help when she receives a knife wound. However, her condition soon grows worse and Hadley calls in Chase for help. Meanwhile, House takes extreme measures to remove the tumors growing in his leg, while Taub receives news from his girlfriend and takes it poorly.

Robin and Barney bond when they intervene in Ted's relationship (until they run into Nora), and Marshall and Lily watch a ticking clock as he fears that he soon will be the victim of food poisoning. Meanwhile, Ted performs his Best Man duties at a very important wedding.

Before he can kiss the bride, Chuck must enlist his wedding party to take down Vivian Volkoff and stop her from destroying the big day. When he turns to Alexei Volkoff for help, the CIA sends its toughest agent, Clyde Decker, to stop them.

The entire town is in an uproar over Adrian's impending baby shower.

As graduation looms, Naomi makes a decision that could prevent her from graduating with her class. Liam tells Annie that he doesn't want to go to college and Ryan asks Debbie to move to Paris with him. Meanwhile, an impromptu wedding takes place and Adrianna is shunned from the group when they find out her scheme to get revenge on Silver.

In the semi-finals Chelsea, Kirstie, Ralph, Hines and their pro partners, will dance one unlearned ballroom and one unlearned latin dance to finally participate in the Cha Cha Cha Marathon, where the winner takes all the points.

Mordecai and Rigby injure Pops by wrestling him and in the end, have to take care of him during the night when Pops got them tickets to go to the wrestling championship.

Kate's ex-boyfriend reveals some shocking information that could put her relationship with Ben in jeopardy, and Connie and Larry's fake date takes a very real turn.

The episode continues from the early events of the Constance Alumni event. Georgina Sparks turns up at the event looking for trouble. Serena and Vanessa reluctantly join forces to find Dan and Charlie, who does not take Dan's rejection of her well. Blair must make a choice between the men in her life when her life is in danger from Russell.

Kelly Parker's manager, Shelia, arrives at the gym and starts scheming to make Kelly the most recognizable girl on the team, which includes trying to get Kelly to sabotage Kaylie by exposing her anorexia to the public.

Martinez recovers and goes to confront the person responsible for putting him in the hospital. Meanwhile, Simon, Sterling, Vicky, and Sean finally team up to stop Sophia, unaware that she has already used Leila to develop a viable viral strain and is distributing it throughout the U.S.

The case against Alderman Gibbons escalates when Colvin, Wysocki and Evers scramble to locate a star witness. Meanwhile, as Liam rushes to collect more evidence, he is forced to take matters into his own hands.

Mike is put in an uncomfortable position when Peggy's new boyfriend questions him about marrying Molly.

Magnus and Tesla inadvertently stumble upon secrets of the Vampiris race when they investigate a former Praxian stronghold - and encounter Afina, Queen of the Vampires. Meanwhile, Kate's past comes back to haunt her.

A manhunt is launched for professional hitman, Hal Lockwood, after he escapes during a court hearing. Lockwood possesses information about the murder of Beckett's mother. As the hunt proceeds, Castle and the team find there's someone with connections to law enforcement who's linked both to the death of Johanna Beckett and to Lockwood's escape.

Jackie criticizes Kelly's interaction with two flirty high school girls while Mrs. Akalitus seeks Thor's help with a new phone system. Jackie can't arrive in time at her daughter's pageant.

When a crazed gunman open fires during a rally with State Senator Celeste Kelman, seven innocent people are killed including the Senator. With the help of modern technology, the detectives identify a solid lead and possible motive for the shooting.

When Five-0 gets too close to the truth about Wo Fat and his associates, the criminal mastermind retaliates by trying to destroy the team. They've always played by their own rules, but when the Governor can no longer protect them, it's time for Five-0 to pay the consequences of their actions.

When the hotel safe is robbed during an extravagant Indian wedding celebration, the distraught couple asks Balagan to help recover their stolen gifts but is it an inside job or the work of professionals?

RJ asks his dad for driving lessons as his 16th birthday approaches, but he gets more than he bargained for when his dad brings him to Hunkeez, a male strip club.

A new alter comes to light that put Charmaine's new baby at risk. Soon later, Alice visits Dr. Hattaras and intrigues him in Tara's case again. Kate, Max and Marshall fly to New York where they get to meet Kate's new friend Evan and his son.

Jon Ronson

Zach Galifianakis, Sig Hansen, Raphael Saadiq

Alison Klayman

Julianna Margulies, Andy Cohen, White Lies

Eva Mendes, storm chaser Reed Timmer, Tedeschi Trucks Band

Robot skeleton sidekick Geoff Peterson, Simon Helberg

With an Immunity Pin up for grabs, guest chef, Colin Fassnidge, better bring his A-game because this season's MasterChef contestants aren't going down without a fight!

In Karakura Town, Nozomi Kuj? wanders listlessly around the town, with Kon in close pursuit. He asks her where she is going, to which she states that she doesn't know. He berates her for walking around without knowing where to go, to which she throws a rock at Kon, pummeling him into a nearby tree. He shouts at her avidly, prompting Nozomi to say that she has a place to go to, but doesn't know the exact location.

Elizabeth is brought up short by the arrival of her gravely ill estranged grandmother.