P.J. and her mystery date join Stephanie and Lance on an excursion through Rome. The guys go through life changes at home.
Andy and Meredith hire a nanny, Elsa, who happens to be hot and from Sweden, and the boys hold nothing back in their competition to impress her.
Brendan and Bobby compete to see who can make the best shirt. P.J. has a chance to write a book about a New York Met. Brendan wants to be a bartender.
Andy joins an improvisational comedy class. Brendan, sick and depressed, engages in self-diagnosis and medication. Bobby's girlfriend has visa issues.
The gang worries that Andy is having an affair with a female co-worker. PJ agrees to help Bobby plan his wedding.
Bobby's friend expects everyone to pay for everything for Bobby's bachelor party. P.J. goes with Stephanie to Elsa's shower. P.J. confronts Andy over his relationship.
PJ struggles with whether to accept the advances from Bobby's brother. Andy and Meredith decide to try couples' counseling after having a big fight.
Tension between Jack and Bobby threatens the gang's weekend at a luxurious ranch. Mike connects with an older woman. Kenny gets fashion advice.
Jack can't be found on the day of the wedding rehearsal. PJ is determined to set things right between the Newman brothers. Kenny and Stephanie try to keep a secret.