Section D is forced to welcome an FSB officer onto the Grid to help track down Aibek, a rogue nationalist from the ex-Soviet state of Azakstan. Aibek is in the UK to find the last known sample of the nerve agent 'Paroxocybin'. The chase is on, but will the team find a way to stop the nerve agent falling into the wrong hands without ruining Anglo-Russian relations? Meanwhile, Lucas's personal life takes a passionate turn.
An escalating gang war spills into the stands of a high-school football game, killing several people; an unlikely partnership arises.
When a coded document attracts Castle's attention, Beckett must steer the case back to the violent felons who populated their victim's world; when Beckett's ex-partner arrives, Castle must watch the relationship become romantic.
Mike dives into an amazing Michigan collection but Frank seems to have lost his picking mojo. The guys visit an incredible Wisconsin property that features a reconstituted vintage town. And, the only thing better than Ted’s quirky small town gas station is his one-of-a-kind home where everything is for sale. Frank senses engine trouble with the van while Mike ignores the signs and ends up on his hands and knees.
Simon and Tara pay her sister a visit at university and his friends decide to tag along. Will wants to take a look at the university. Jay decides to offer sex advice to Simon.
A monster called the Fright Hound starts attacking Crystal Cove and people believe Scooby-Doo is behind it. Could Scooby be the one attacking the city or is someone setting him up?
Nancy decides that her family has seen enough gunslinging for a lifetime, so to lighten things up she takes them to a Montana fair. Andy and Silas enter a butter-eating contest while Doug looks after the baby and makes friends with the carneys. Elsewhere, Nancy escorts Shane on a rollercoaster where they stir up some trouble in line.
In an animation first, the episode offers the audience a behind-the-scenes look at the "filming" of the episode. When Cleveland and Donna attempt to celebrate their anniversary, their unruly kids and disruptive friends, including Donna's ex-husband, Robert, get in their way.
After a ridiculously pointless (and failed) lawsuit against their own band-mates and a devastating embarrassment in France, Murderface and Toki are suspended from the band. They later decide make a record label called "MurderTooth Records".
The Walkers attend a swanky launch party for Luc’s underwear advertising campaign where 14-year-old Paige falls in with the wrong crowd; despite several visits from Justin, Holly still struggles to remember the things that were once most important to her; Kevin is saddled with a runaway juvenile delinquent; and just as Nora very publicly admits that she’s taken a part-time job as a florist, she’s approached by a radio show producer with a job offer.
Darren Tracey skipped Dublin when a gun was found in his house and he’s been living the past year in Spain, but he decides to risk it and come back to Dublin. He’s homesick and a party for his brother’s release from prison is the perfect excuse. It’s only for the weekend but sometimes life is full of surprises - especially if you and your friends are in gangland.
Hank opens a detective agency and enters a dark world of sinister crime and shady women.
Co-leaders Ray and Greg come face to face in Atigun, while Lisa's hard work pays off with an unforgettable reunion, Alex pushes to finally beat his nemesis and Jack's hope to repeat as King is in jeopardy in the season finale of Ice Road Truckers.
The CSI's must catch a madman causing havoc all over Miami and the team has to mourn one of their own.
As Mason goes in for his 6-month check-up, Kourtney realizes she wants another baby so her kids will be close in age like she and Kim were, but when she obsesses about getting pregnant, Scott thinks she's taking all the fun out of the process of trying. Meanwhile, Bruce has a hard time accepting that 12-year-old Kylie has male friends, and there's tension when she breaks the rule about inviting a boy up to her room.
Jonathan is hired by Richard Antrem, George's nemesis and boxing foe, to investigate Richard's suspicions that his wife Priscilla, George's ex, is having an affair. Jonathan's insecurities resurface when Stella announces she's not over her first love. George has a new female urologist; Ray plots to win back Leah by penning a comic book.
Will gets a special assignment from Truxton; Tanya is asked to rejoin the team to help locate Kateb; a threat leaves Katherine afraid to leave her house.
A man recently released from prison is found dead along the fairway. The victim was the caddy and life-long friend of professional golfer Scott Winters. Things don't add up for Longworth when he discovers the victim may have served time for a crime he didn't commit. The case motivates Longworth to commit to breaking 80 on the greens. Heather tempts Longworth with her cooking while Callie frets over their relationship. Daniel seeks a promotion from his intern status