Newly-appointed Secretary Of State Elizabeth McCord is immediately faced with a maelstrom of complex political challenges, and an international hostage situation is her top priority. Meanwhile at home, Elizabeth questions whether she did the right thing by taking this job, as her children are finding it difficult to adjust to their new schools.

Dash's secrets begin to unravel; Joanna is devastated by Tarkoff's actions. Wendy and Joanna decide to reconnect with their father.

Roger and Francine discover an alien in the woods, and Roger capriciously has a one-night relationship with her before being fed up with her quirks. He tries to get rid of her by calling the CIA, but then realizes that he can't go through with it.

Chalky heads in a new direction after assessing his latest partnership. In New York, Margaret finds herself in a quandary as a result of her association with Arnold Rothstein. Nucky hosts a prospective "big fish" partner from Boston. Luciano and Siegel meet with Narcisse in Harlem, promising business as usual, but encounter resistance. In 1884, young Nucky is privy to the passion of a hotel guest, and flirts with a young girl.

Ray starts to make arrangements in case he gets arrested when Kate publishes her story. Meanwhile, Cookie gives Ray a million dollars to track down a stalkerazzi video of the shooting. Mickey's robbery doesn't quite go as planned when Terry gets left behind - and arrested. Plus, Shorty's oxygen tanks explode while Conor is waiting in the SRO, leading to a confrontation between Ray and Mickey. And Ezra tells Ray and Avi that Kate needs to be stopped.

Alicia is adamant in her refusal to run for State's Attorney despite Eli's attempts to persuade her to launch a campaign. Meanwhile, as Diane considers joining Florrick/Agos as partner, an internal crisis threatens to destroy the firm.

A television crew arrives at the clinic to document Masters and Johnson's work treating sexual dysfunction. Masters considers the publicity premature, and himself unsuitable as a television presence. Virginia deals with the fallout of having prioritized her work over her parenting when George argues to take their children on a trip with his new wife. Plus, Libby finds in Robert an appreciation for what she has to offer. And Langham realizes there's no way out of his sexual contract with Flo.

A plan is hatched by Frank and Charlie.

Eph is forced to leave Zack at the pawnshop with Mariela while he, Nora, Vasiliy, and Abraham enter the subway tunnels beneath the World Trade Center in a desperate bid to find the Master and kill him. Meanwhile, Gus returns home and discovers the fate of his family.

Darius is confronted by Vanessa about his plans; Alison and Kyle meet the MayTwos; Garielle's deal with Perry is found out by the president and he confronts her about it.

Two survivalists battle hunger and dehydration in Brazil.

With temperatures rising and the winter roads quickly melting away, it's a mad dash to the finish line. VP Express and Polar are neck and neck in a race to end the season on top. Polar drivers Lisa, Art and Todd embark on an epic journey up the longest seasonal winter road in the world. VP stays closer to home, traveling treacherous roads in a late attempt to boost their load count.

The Miss America Pageant... how is this still a thing?
They claim to give more scholarships to women than any other organization, and, unfortunately, they're right.
To illustrate these problems, John Oliver stages his own pageant with the help of Kathy Griffin.

QI Elves v Bibliophiles: Victoria Coren Mitchell presents the quiz show about making connections. The QI researchers take on a trio of book lovers.

After a Roman sword is found with traces of blood on it, the DNA is linked to an unidentified, headless corpse discovered near Heathrow Airport in March 2008. The team take a look around a lock-up belonging to the owner of the sword who died of a suspected heart attack, also in 2008. After they discover the missing head they begin to look for connections between the original murder and Rix's death.

Rob attempts to raise the spirits of the gang by throwing a surprise birthday party for James. He is not in the mood to celebrate though and seems intent of unearthing a secret. Ruth is charged with supplying the ketamine.

Having won 100 denari each through Stylax's betting on a chariot race, he and Marcus have very different ideas on how to spend the money. Marcus, naturally, wants to spend it on Cynthia, whilst Stylax prefers a more laddish approach.

Surprisingly, Aurelius is getting married. Even more surprisingly, he invites his 'best mate' Marcus to be his best man. Reluctant to say the least, Marcus plans a night on the cheap, avoiding the hottest club in town.