After his car blew up, Theo was taken to hospital in a critical state. Caplan and Morlighem go to Vogel's place, determined to avenge their companion. Vogel finds an ally in the shape of Orianne Beridzé, who also wants to eliminate Caplan. Her plan is to force her father, an ex-cop, to contact Caplan and put him on the tail of a trafficking network run by the Russian Mafia. Meanwhile, Roxane is deeply upset about Theo and watches over him day and night.
Caplan and Morlighem have intercepted a truck from a company belonging to the Russians and uncover a major prostitution ring. They are aided by a cop from Georgia, Andreas Megrelishvili, who informs them that a war between clans of the Vor V Zakone Mafia from different post-Soviet states is about to break out in Paris. Meanwhile, Roxane, who wants revenge for Vogel, strikes a deal with the former prosecutor, Vanderbeke.
Sergeant Carlin busts a gang of van thieves and uncovers a major cut-and shut shop in the process; a bizarre late night compost thief gets nicked on his way out of the shower and the hunt is on for a baseball-bat wielding trucker with dangerous road rage issues. Plus Brian cracks down on a barbaric blood-sport, Jon faces an unexploded bomb and pair of fuel thieves plough straight into the interceptor’s precious BMW; while strict vegetarian, Craggy, rides to the rescue of a lorry load of cute calves on the A46.
Summer is coming to an end at the resort and guests are preparing for parting with the sweet holiday life. Fie is invited to stay for the winter, but is in doubt because of the relationship with Morten. Mrs. Fjeldsø makes a last desperate attempt to find a suitable match for her son Adam, while Weyse abandons his desperate hunt for Mrs Aurland and learns something new about women's psychology. Merchant Madsen sees through Count Ditmar, but still hopes that he will be his son-in-law. Everything is bright until Ditmar's tormentor suddenly shows up at the hotel and threatens to expose the young Count's past.
After what came across as a surprise split vote for Philip the night before, he vowed to do whatever he could to improve his position in the Selatan tribe. His main focus was to prove his own worth around camp in comparison to David, the tribe's outcast.
After watching a romantic film, Logan and Garrett argue that their group votes are unfair, since there are more girls than boys, thus they end up always doing girly activities. At school, they decide to invite a new guy, Tom Bigham from California, to the group. Even though it seems like a good idea at first, he turns out to be quite annoying, and the group decides to give him away, without success.
With news of the first horrors of war in Belgium, the men of Selfridges clamour to sign up, while Rose, Delphine and Lady Mae organise a special chocolate sale to aid refugees - which goes down a treat in the store and proves inspirational for Miss Mardle. Thackeray suspects Henri is up to no good, Victor faces a family crisis and Loxley gets his shady money-making plans off the ground.
Marty and Jeannie launch a duplicitous plan to remove Lukas from DollaHyde; Dre and Marty bond on a personal level; Clyde woos a big client; Doug deals with his feelings about having a baby with Sarah.
Jenny has an eventful few days, starting with a patient who as well as having herself to worry about, is also struggling to cope with her mother, an agoraphobic who hasn't been outside for at least 12 years. On top of that, Alec asks the midwife to accompany him to Brighton for the weekend, leaving her wondering if his intentions are strictly honourable. However, things soon take a tragic turn. Meanwhile, Shelagh joins the local choir to take her mind off her problems.
Hart and Cohle hunt for their newly identified suspect, Reggie Ledoux, a meth cooker who shared a cell with Dora Lange's husband and recently skipped parole. As Hart's personal life collapses around him, Cohle immerses himself in an old criminal identity from his narco days, contacting an East-Texas biker gang known to deal with their primary suspect.
Rick and Marty Lagina make one of the biggest discoveries in the 200-year old search for treasure on Oak Island.
When the kids overhear their parents' conversation, they mistakenly believe they are moving.
Bo is reluctant to comply with her role in a prophecy foretold by an order of Knights, until advice from a surprising source helps her make a difficult decision.
Kanye's assistant tells Kris that Kanye has a surprise for Kim's birthday. Kris is tired of having Kim take over her house, and Kendall and Kylie are tired of Kim making changes to the many comforts in it, and they confront Kim about it when they find out that she'll be staying with them for months more, because the house won't be ready soon. Kourtney and Khloé get some revenge on Kim when she continues criticizing them on what they wear.
Megan shows up in New York to surprise her twin sister Amy and then male models Jamie and Ben try it on with the newly reunited sisters. Georgina is fired from her concierge job and turns to bar owner Gagan to keep her visa and her New York dream alive.
Po is suspicious when Shifu gets back together with his evil ex-girlfriend, Mei Ling.
A customer buys a gift for his father's 75th birthday; the Stash throws a party for Superman's 75th birthday.
Aaron misunderstands Charlie's advice and gives Sam all of Stephanie's jewelry; Gabby decides to torment James.
Richard Hammond gets behind the wheel of the mid-engined Alfa Romeo 4C on the shores of Lake Como in Italy - but his enjoyment of the lightweight vehicle is disturbed by the arrival of Jeremy Clarkson, who demands a race against his quad bike. Jeremy also visits Belgium, putting the McLaren P1 hypercar to the test in Bruges and around the Spa-Francorchamps Formula One circuit - and its combined power output of more than 900bhp generated from electricity and turbocharged petrol V8 power is likely to cause astonishment. Meanwhile, James May spends time at Camp Bastion in Afghanistan to learn about the army's vehicle redeployment efforts, and Thor star Tom Hiddleston tries to coax the best time he can muster from the Reasonably Priced Car.