Cee Biggs brings her reality show cameras to her father's office - just in time for gunshots that trigger a lockdown on Capitol Hill. Rosalyn forces Robert to face the truth about his marriage, and Louis is forced to let go of a fantasy.
As a double U-turn looms in the exotic city of Marrakech, Morocco, contestants suspect each other of playing dirty.
A woman's abusive boyfriend targets Jamie after he intercedes in a domestic dispute. The press gets hold of an illegal tape capturing Henry's insensitive comments, and Frank must deal with the ensuing scandal.
Together on Graham's sofa: Sherlock star Benedict Cumberbatch, starring as Alan Turing in The Imitation Game; Timothy Spall, in new film Mr Turner; comedy favourite Miranda Hart; and musical guests Maroon 5, who perform Animals.
When Ester invites Ben (who brings along Rook to the former's dismay) to a museum exhibit displaying alien artifacts, they encounter Ben's former crush Kai. When Ester discovers their relationship she immediately becomes jealous of her. The four of them are forced to team up, however, when a priceless exhibit that Kai put on display is stolen. Chrono Spanner also reappears again, this time trying to convince Ben that he's "destined" to marry Kai, to Ester's chagrin.
How do they build a port ready to receive huge container ships? How do they make 28 million plastic bags a day? How do they blow the glass to make...
ATM tackles one of their largest builds to date as they create two connecting tanks that total nearly 250,000 gallons of water for an aquarium attraction in Florida where visitors can dive with sharks.
On the fourth anniversary of his father's death, McGarrett meets a woman who helps him reopen the last unsolved case his dad worked on before he died.
Chase gets a girl interested in him, but Adam gets jealous and tries to ruin their date by having Chase turn back into Spike. Meanwhile, Leo and Bree suspect that Principal Perry has murdered a cook from the cafeteria and Donald. They then find out it was about a hamburger truck and they misunderstood everything.
When a classics scholar is stabbed to death and dumped in the Oxford Canal, Lewis, Hathaway and Maddox find themselves sorely tested by a bizarre case.
Gil John helps a former player become a war hero, and quickly regrets it. Robert hosts an engagement party for his latest matchmaking success, but isn't prepared for the surprise guest.
Todd and Jack struggle alone at McKinnon creek, working with just their old 400 excavator and a left behind loader, while Thurber transports their wash plant from Guyana to the claim. Tony nearly crushes his son beneath a conveyor, and Parker is forced to mine a swamp.
Gil John gets attacked by Sarah Palin and embraced by the media. Pressured by the party chair, Louis nudges Julie to consider a big wedding. Robert is forced to kiss up to his ex-wife's new beau, but gets some help from Rosalyn.
The survivors struggle to recover from a shocking death; and in Kansas they happen upon a gun show that makes the zombie apocalypse look calm.
As the election returns come in, Gil John meets with a presidential campaign advisor, while Robert wonders if he still has a job. Katherine and Julie discover their wedding has been turned into a major political event -- after they arrive.
While the young airbenders look far and wide for Korra, Ikki is briefly captured by two Earth Empire soldiers. Based on what they say, Ikki leads the trio to the swamp. There, Korra is still haunted by visions of being hurt by her past enemies, but manages to connect to the siblings through the great banyan-grove tree's roots. After they beg her to resume her Avatar duties to face Kuvira, Toph's advice helps Korra to let go of her fears, bend the rest of the poison out of herself and re-enter the Avatar State.
Lee's big mouth has got him and Lucy invited to a christening party thrown by new neighbours Toby and Anna, and now they have no time to find the perfect present for the baby who has everything.
Gil John tries to right things after the Watts brothers "Swift Boat" his former player. Julie shocks Louis and Louise by announcing she's pregnant from an anonymous donor, while Adriana confronts Marta the housekeeper about Andy. Louis tries to debate Penn Jillette, but he's no match for what the magician has up his sleeves.
Chuck and Mike debate the merits of an inner city school merging with a high school in an upscale neighborhood; Boyd's Halloween costume -- a lump of coal -- reminds Vanessa of her job's potential impact on the environment.
Gil John finally breaks through to daughter Cee, then gets a lesson in civility from the women's caucus. Andy heads to Miami to try and win back Adriana, and gets some insights into his "condition" from a therapist. Meanwhile, Robert ignores his advisors and helps register black voters.