With the Russians launching a nuclear strike on London, the only person who can help the team in this desperate hour is the traitor amongst them. With the Russians hunting them down, the team ushers their traitor through London in a desperate bid to reach the codes, and the bomb, in time.
Tommy's plan to extricate himself from political entanglements hits a snag when Speaker Danatello seeks his help passing the budget. Declan learns more about Tommy's involvement in the Waterfront Project and connects Tommy to Nozzoli. Michael's jealousy over his mother's attachment to Colin adds fuel to his paranoia about Colin and Kath.
Alex tries to save the taxi that she was born in. Meanwhile, Justin sets out to find his birthplace.
A body is found at a cash point, the apparent victim of a heart attack. Two teenage girls are arrested for the brutal murder of a cab driver. The girls confess to the crime, showing no remorse. Two open and shut cases. At first these two incidents seem to have nothing in common, but as Wallander delves deeper into the mystery of why the girls murdered the cab driver, he begins to unravel a plot much more involved complicated than he initially suspected. The two cases become one, and lead to a conspiracy that stretches beyond the borders of Sweden.
Uncle Gabby gives Drinky Crow a hernia, and feels guilt for the first time in his life, so he orders an immense Monkey God from the internet.
Ashby hosts a party to celebrate the publication of Mia's book. Becca is devastated to catch Damien cheating on her.
Lynette takes extreme measures to protect her son. Carlos realizes the extent of Gaby's sacrifices for their family. Bree wants to prove to Andrew that she has accepted him for who he is. Katherine finds happiness, as Susan and Mike recognize the fate of their relationship. Meanwhile, Dave starts to lose his grip.
While preparing for his big wedding day, Dexter has to figure out a way to remove Miguel from his life for good. In the meantime, Rita has troubles of her own, when Syl reveals that Miguel has been seeing one of his old flames. Debra finds a new clue that brings her even closer to catching the Skinner.
A desperate aerospace CEO asks Nate Ford - an insurance investigator who once specialized in recovering stolen goods worth millions - to lead a team of expert thieves to recover airplane designs from the rival company that took them.
With the Warden missing, the Superjail staff tries to make it in the real world.
Mr Burns wins a professional basketball team in a poker game at the annual billionaire's retreat. He decides to build a state-of-the-art facility in an attempt to lure fans, but the stadium site is on the last remaining bee colony in Springfield - prompting Lisa to lead a protest.
The Walkers encounter some conflicts in the schedules on Thankgiving; leaving Nora & Sarah alone to celebrate; Elizabeth endures a medical emergency that brings the family together.
Three pieces of luggage filled with the dismembered body of William McGuire are retrieved from Chesapeake Bay. Can New Jersey police convince a jury that his beautiful wife (a nurse) was capable of such a gruesome crime?
Ty asks Amy to give their relationship another chance. Ashley makes a decision that surprises her mother and Lou. Cattle rustlers hit Big River Ranch, and the situation gets out of hand.
Live from New York, it's... Darrell Hammond and Amy Poehler! Sketches include "Secretary Clinton," "Gas Right," "Sexy Shannon," "Obama Keeps It Cool" (film), "La Rivista Della Televisione," "Virgania Horsen's Pony Express" (Digital Short), "Calculators," "The Lost Works of Judy Blume," "Jizz In My Pants" (Digital Short), and "J'Accuzzi." T.I. performed "Whatever You Like" and "Swing Ya Rag" (featuring Swizz Beatz).
Visions of the Seeker's death prompt a sorceress named Shota to temporarily exchange Richard's identity with that of a merchant's son.
Now that the mutineers' ship has been fixed, he must think of a new plan to get on it and off the island, once someone discloses his plan to the ship's captain.
Italian dishes are made for a holiday get-together. Included: penne with shrimp and herbed cream sauce; Gorgonzola-stuffed portobello mushrooms; cranberry-cornmeal cake topped with caramel-walnut sauce.
Gwen's father, Tom, helps a sorcerer named Tauren turn lead into gold using a magic stone. As Tauren escapes, Tom is caught and will await trial. Whilst looking for Gwen, Morgana finds the magic stone, and Merlin can sense it. When Tom is killed by Uther, Morgana is out for revenge on Uther.