The escapees and Dr. Tancredi are shocked when they learn the identity of Michael's visitor, who brings with her a very important piece of the escape plan.
As Lily becomes more of a permanent fixture in the apartment, Ted feels like he is being edged out of the mix by his engaged roomies. Petrified of being left alone and homeless, Ted tells Marshall that when he and Lily are married, he wants the apartment. The problem is that Marshall wants to keep the place too, so they settle it like real grown-ups -- launching into a sword fight that leaves one man down for the count.
As the family attends the wedding of one of Oliver's old girlfriends, Lydia frets over feeling awkward at the ceremony since she is now divorced. Meanwhile, Oliver wants to show up the bride by bringing a hot date to the ceremony, but his companions keep leaving him.
Charlie tricks Jake into taking ballet lessons, so he can get close to the teacher.
Ryan Wolfe, with a nail knocked next to his eye, is being carried to hospital by Delko. There, Horatio remembers how the day started, with the discovery of a murdered woman who was attacked by someone with a nails gun.
Mona and Dee Dee are half-sisters with the same father who didn't really know each other when they were little and are complete opposites, but as adults they live in the same apartment building and at least try to bond.
Lynn feels pressured to consummate her civil union with Jennifer. Joan, Maya and Toni teach William's young girlfriend to stand up for herself.
Doug and Carrie try to get Deacon and Kelly to buy the house next to them, but a couple with eight kids moves in instead. Meanwhile Danny and Spence compete over a girl from Albania named Zana.
Two plastic surgeons--one a dedicated family man and one an unscrupulous playboy--strive to maintain their business whilst having to work their way through numerous hardships ranging from personal to clients with criminal connections.
Eric Camden, a minister, and his wife Annie deal with the drama of having seven children, ranging from toddlers to adults with families of their own.
The life, or lack thereof, of a proprietor of a gas station, which is the only stop for miles around and a hub of action on the Prairies.
Marco takes a big step in deciding to tell his father about his sexuality. Emma's relationship with Peter puts a strain on her friendship with Manny.
Allison's vision of a murder could potentially derail Devalos' reelection campaign, and Joe runs into an old girlfriend.
Dustin's new science partner is PCA troublemaker Trisha Kirby, who much to his delight decides to declare him her boyfriend. When Zoey finds out about this new relationship, she drafts Chase into trying to break them up. In the process of doing so, Chase inadvertently causes her to turn her affections towards him instead, placing him in a love triangle with Dustin, and forcing Zoey and Chase to examine true nature of their own friendship.
Brian re-enrolls at Brown while Peter and the guys become the new A-Team.
Casey is sick of having no room in the Venturi house and brings up the subject to Derek and the rest of their siblings. Derek, who doesn't like sharing or losing, tells Casey how they get things in his house. After handing out marbles to represent the disputed areas in the house they start challenging one another for the other marbles. Neither side plays fair, and both sides will be underestimated.
The Spencers flee into hiding after Percy steals from a dangerous man.
Fitz views a threatening video from Shark, introducing him to Pronto.
Gabrielle tries to revisit her past when old friends come to town, but doesn't want anyone to know that she's three months pregnant. With the aftermath of her breakup with Mike, Susan finds temporary solace from her ex-husband Karl as his relationship with Edie hits a bump. Also, the Scavos learn more about the new neighbors, the Harpers when they babysit their children and uncover a sex tape of the couple. Lastly, Caleb gets loose from the basement and roams around Wisteria Lane at night, which leads to major consequences for Gabrielle.