While helping a new a friend, Marco comes face to face with reality and has to make a big decision. Also, Emma is starting to like Peter which could damage her friendship with Manny.
Allison has a vision that could jeopardize D.A. Devalos' chances for re-election. Meanwhile, Joe runs into an ex-girlfriend from college.
Doug and Carrie hear conflicting reasons why Deacon and Kelly are not interested in becoming neighbors. Meanwhile, Danny and Spence each have their eye on a beautiful Albanian girl, who misinterprets the situation.
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.
Everyone in town is laughing at Brent's old-fashioned camera, so Brent goes digital in order to get some respect. But he forgets the important rule that if you want respect, you've got to read the owner's manual. Dog River has a trivia contest at the hotel, and crowns an unlikely winner; and Oscar's hatred of garden gnomes becomes an issue when one of them seems to have a life of its own.
Eight Canadians with poor driving skills are sent to an army base. They undergo challenges to enhance their driving abilities. Weekly, the most improved driver leaves. The last remaining participant is deemed Canada's Worst Driver.
The CSI's are called out to investigate the murder of a young woman who was about to sign her divorce papers. Soon the husband turns out to be the ideal suspect. The only strange thing about the case is the murder weapon: a nailgun. The case becomes complicated when one of the CSI's is attacked when he returns to the crime scene and ends up in hospital.
Spencer seeks Dee Dee's advice to land a sophisticated woman, and again turns to Dee Dee for help ridding himself of the woman when she proves to be unbearably controlling. Gabrielle repeatedly refuses Spencer's efforts to break up with her. Meanwhile, Mona reluctantly gives Phyllis some advice before her first big romantic weekend with Glen. Dee Dee plans a bachelor party for a client.
A sportscaster becomes a full-time dad when his ex-wife decides to accept a job out of the country and his teenage daughter, Breanna, moves in with him.
The girls interfere when William tries to take things to the next level with his new girlfriend. Meanwhile, Lynn and Jennifer prepare to go all the way.
Lou and Santos run into trouble on the road when they try to pick up a family's vote; their child was shot by a Latino police officer. Also, CJ must manage a crisis between China and Kazakhstan.
Vorenus sees to it that veteran soldiers receives severance on behalf of Caesar, and is then invited along with Niobe to one of Atia's parties.
Lilly re-opens the 1999 case of a young, healthy woman who nevertheless died of a heart attack. In the late 1990's, she was briefly an Internet millionaire, but due to bad business decisions, her dot.com company eventually went bust.
Jenny is suspicious of Brad' new girlfriend, Melody, especially when disasters keep happening wherever Melody goes.
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.