Matthew Crawley and his mother Isobel arrive at Downton, and have difficulty settling in. Carson is mortified when confronted by his past. Violet attempts to promote a match between Matthew and Mary. Isobel is elected to serve on the hospital board.
Grampa gives each family member a portion of his savings; Lisa worries that Nelson's instant success with a new business venture might lure him away from continuing his education.
Lynette is angry when Renee starts spending a lot of time with Tom; Bree finds herself falling for Keith (Brian Austin Green); Susan feels guilty about her side job.
Stan offers a reward to the person who can stop Hayley and her old boyfriend from eloping.
Dexter tries to focus on the children and fight his dark urges; Debra ends up on Quinn's doorstep.
Charros owner Sebastian Cisneros agrees to pull out all the stops in promoting Kenny Powers’ return to organized baseball, but Kenny loses motivation after learning a secret about April from an old friend.
When a Fury with an unfaithful spouse tries to hire Bo to kill her husband's mistress, Bo instead takes the side of the unsuspecting human woman and puts her under protection.
Gently and Bacchus investigate the murder of a well-known left-wing academic.
Brian decides to confront Rush Limbaugh when he comes to Quahog for a book signing.
An unlikely witness to the woods massacre threatens to expose the perpetrators, sending both Eli and Van Alden rushing to the hospital. Margaret starts a new job at an upscale French dress shop at the Ritz, while Chalky's team pays a heavy price for taking over Mickey Doyle's bootleg operation.
Amy scratches the surface to discover Nick Harwell's problems with his polo ponies, Lou's life in Dubai and Tim's relationship with his jockey are not what they appear to be.
Hank opens a detective agency and enters a dark world of sinister crime and shady women.
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.
Kody and his teenage daughters throw a birthday party for his new fiancee Robyn, while first wife Meri struggles with feelings of jealousy
Kody heads south to court his potential fourth wife, Robyn. Meanwhile back home, the wives express their true feelings about their new possible sister wife as they make preparations for Christine's new baby.
After having music block, Miley finally becomes inspired by the sounds that she hears around the pier.
Sterling Cooper Draper Price employees resort to scuttlebutt after an agency wide meeting is called.
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.
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.