Dre and Bow start to slip on the kids' activities and chores around the house, so Bow persuades Dre to hire a nanny. After several interviews that don’t go well, they meet Vivian, who impresses them with her desire to take care of the whole family, including Dre and Bow. Dre struggles with the idea of hiring a black nanny, but decides to give her a try. Meanwhile, Diane decides to run for class president, so when the smart and bubbly Susie Kwest becomes her competition, Zoey helps Diane create a smear campaign to win Diane the vote.
The BAU heads to Wichita in search of an UnSub abducting children while their parents sleep. Also, Morgan tries to find who was responsible for his attack.
Phil has a new client whom he tries to hide from his wife because she’s attractive, while Claire would rather keep her hot yoga instructor a secret. Jay becomes preoccupied making a Web show, but is tormented by an Internet troll. Lily is nervous about learning to ride a bicycle, and her parents aren’t exactly the best teachers.
It’s the wedding viewers have longed for when Deacon and Rayna tie the knot, complete with captivating music performances by series regulars Charles Esten, Clare Bowen, Sam Palladio, Lennon Stella and Maisy Stella as well as cameos by Jay DeMarcus of Rascal Flatts and singer/songwriter Jim Lauderdale portraying themselves. When the loving couple are ambushed by paparazzi after their intimate rehearsal dinner, Deacon’s hot-headed reaction casts a pall on the plans and forces a change of venue. Meanwhile, wedding guest Avery is struggling to keep up with the lies Juliette is forcing him to message to press in her absence.
Philip and Elizabeth deal with the fallout of all they’ve wrought. What will happen when the FBI finds out about Gene’s suicide? How will Pastor Tim deal with the revelation that they are Russian spies? And will they be able to handle a dangerous, new bioweapons assignment?
Frankie's excited to take care of Sue and Axl after they both have their wisdom teeth removed; and Brick lays down new house rules for his siblings while they're back home. Meanwhile, Mike learns the diaper business was Rusty's ex-wife's idea and becomes furious when he finds out she may be entitled to all their profits.