It's up to Michael to hold the gang together after they find out they were betrayed by one of their own. Meanwhile, Gretchen is blackmailed by T-Bag's new partner.
At the annual Snowflake Ball, Blair and Chuck bet they can find ideal dates for each other. Aaron's ex-girlfriend shows interest in Dan.
Cameron learns that a terminator was accidentally sent back to s Los Angeles, and she tries to find out what happened to him. Meanwhile, John has a run-in with a group of punks while taking Riley home from a party.
The team is assigned to survey the Global Launch Agency, when intel shows that someone might penetrate their security. During the surveillance someone intrudes the lab who turns out to be Casey's former sensei Ty Bennett. Meanwhile, Captain Awesome's perfect parents decide to pay Devon and Ellie a surprise visit to help them plan the wedding, and Emmett Milbarge introduces an "Employee of the Month" contest to the Buy More, but the employees start their own contest instead.
After Denny learns some disturbing news about the progression of his Alzheimer's disease and that an experimental drug might help, Alan tries to convince the Massachusetts Supreme Court to let his best friend have access to it. Meanwhile the murderous Catherine Piper returns, and Jerry and Katie take on the case of an ambitious student accused of cheating on her SATs.
Who would murder such a nice lady? And why? Cooperation of the public and family with the Pinellas PD was just as important in solving this case as forensics. A photo of the victim wearing a watch was a clincher for the jury.
Samantha struggles with trying to be an environmentalist for Evan.
Roy and Maggie loved their house from the moment they saw it. But after raising three boys and starting their own business, their family has outgrown the space - especially when it comes to storage.
Audrina tries to save her friendship with Lauren after accusing her of hooking up with Justin.Â
Lebano leads his associates on a brutal campaign to wipe out their rivals in Rome - but after forming an alliance with the Sicilian mafia, they become entangled in a terrorist plot to kidnap one of Italy's most senior politicians. Meanwhile, Scialoja grows dangerously close to Patrizia and Ice continues his romance with Roberta.
Nora recruits the family to deconstruct her new charity money pit; Kitty & Robert take a huge & overwhelming step in adoption; Sarah takes a big risk with her new business partners by eating crows; Holly pushes Tommy to his limits when she does something in the winery without consulting him.
Spinner starts to breakdown when he doesn't get into college as planned. Clare has to decide between KC and Conner when both guys ask her to the school dance. Kelly and Emma's flirtation finally leads to an actual date.
Peggy volunteers as the Arlen Welcome Wagon lady, introducing Hank to a new friend, Wesley Cherish. The relationship sours after Wesley is revealed to be a helicopter parent who accuses Bobby of being a bad influence.
Tommy tries to charm Declan into sharing information about his corruption probe; Rose learns the truth about her health; tension builds between Michael and Colin as they help Freddie plan a heist.
Reinvestigating the 2005 murder of a black politician who vowed to rid his old neighborhood of drug dealers.
Scott helps people in debt find new houses to buy, renovate, and rent out to others to create an income.
For Gaby and Carlos, injuries sustained in the fire lead to a fortunate discovery. But for most, the consequences are less forgiving. Lynette and Tom vow to protect son Porter at any cost. Susan must learn to let go of the man she loves. Orson's attempt at a good night's sleep puts Bree in a most precarious, though amusing, position on the day of her big cooking demonstration.