The 14th and Final "HoH Competition" of the season begins tonight and we will see the completion of this contest on the very next episode on Tuesday, 16 September.

Tarkoff seeks revenge against Frederick; Freya confronts Killian; Ingrid gives Dash an ultimatum; Wendy and Tommy's relationship proves dangerous; Joanna tries to protect her family.

Roger is forced to sell his beloved attic bar to a restaurant chain after suffering a heart attack, and a sexy new next-door neighbor promises to take Steve and his friends' virginity in return for housework.

Back from Cuba after a dangerous encounter, Nucky pays a visit to the now-retired Johnny Torrio, who agrees to broker a meeting with the new "Boss of Bosses", Salvatore Maranzano. In Chicago, Eli and Van Alden are tasked by Mike D'Angelo, Al Capone's new right-hand man, to recoup money lost during a federal raid by Eliot Ness. Fresh out of law school, Willie Thompson has a job interview. Rebuffed by a group of would-be financiers, Nucky dines with Tonino Sandrelli before sending a message to Lansky and Luciano. In 1884, a young Nucky deals with the death of his sister, Susan, while his father has a standoff with the Commodore.

Carrie and Al delve into the disturbing - and dangerous - world of celebrity obsession when a television star is found murdered in his dressing room.

Ashley's stalker is back and making trouble again for Steve Knight - but when Ray intercedes, he learns that Steve is actually the dangerous one. Cochran gets a call from the President, nominating him for the FBI directorship - and vows to take the necessary steps to protect himself from the vetting process. Kate confronts Ray over the truth about his past, Abby tries to overcome her anxiety for Bridget's safety, and Mickey starts gathering the team for his robbery.

After seeing how sophisticated Greg & Terry's life is, Roger decides to move in with them by impersonating their newly adopted Russian son, Michael.

Masters learns of a rival study and calls in a public relations expert to help brand his work with Johnson. Virginia, having finally learned of Masters' sexual difficulties, is invigorated by the prospect of finding a cure. Determined to prove her worth to Robert, Libby canvases a tenement for a rent strike. Plus, Langham is stunned when Flo informs him that he has to have sex with her in order to keep his job. And Barbara and Lester connect over their shared sexual dysfunctions.

When British scientists who have done extensive work on an Implosion model similar to Frank's visit The Hill, Frank gains some unsettling perspective. Meanwhile, Charlie grapples with whether to tell Akley about the revelation he made about Plutonium, as well as his fate with their group. As Charlie and Frank both face grim predictions about the future of their prototypes, the stakes at home are raised when Abby discovers what is really happening to the Jews in Europe.

Eph gets a lead on Kelly's location and goes to look for her, only to discover two corpses in her wake. Meanwhile, Vasily and Dutch team up to infiltrate Stoneheart and undo Dutch's damage to the Internet, only to be captured by Fitzwilliam.

Alison follows up on the evidence James uncovered, but her investigation hits a dead end. Vanessa uncovers Darius' plan to take control of the Lottery. Meanwhile, Kyle discovers the MayTwos' real agenda and confides in Alison to help. Perry attempts to help Angela as she struggles in the final round of the Lottery competition.

A Seattle banker and a Rhode Island bartender head to Africa to test their survival skills in the barren plains of Botswana. Battling intense heat and a watering hole filled with animal waste will our survivalists walk out of Africa or be carried out?

Carrie is unable to utilize her perfect memory when an assassin doses her with a deadly poison that attacks her brain, leaving Al on a desperate hunt for the antidote.

Darrell continues to teach Reno how to drive the ice roads; bad wiring could sink Alex's cement load; Lisa and Todd run into a a road block.

John talks about the NFL's decision on Ray Rice's contract, the international response to ISIS, Scotland's separation from the United Kingdom and Twitter hashtags that are being misused by corporations.

The boys sell their entire honey oil output to Sebastian Bach, but to seal the deal for the trailer park, Julian has to do something truly terrible.

Victoria Coren Mitchell hosts the quiz where, as in life itself, knowledge will only take you so far, as patience and lateral thinking are also vital.

Tension mounts as Ned and Sasha are forced to work together when the body of a film critic found in a sewer is thought to be linked to the 20-year-old murder of a concept artist. As the team interviews the victim's contemporaries, groupies and assistants, looking for possible connections between the deaths, the members find themselves immersed in the macabre world of the occult. Griffin's expert knowledge of the history of London and in particular the hidden Fleet River, proves invaluable.

A countryside community is rocked when the body of a teenage boy is found under the wheels of a tractor. Working together to solve the mystery of his death, the boy's young friends endeavour to uncover the dark world that is lurking behind the innocent veneer of their quaint little village.