Bobby experiences cold feet on his wedding day; P.J. gets caught in a difficult situation between Bobby and his brother (Billy Burke); Andy's new baby.

Keeping her new boyfriend a secret from her friends proves difficult for P.J.; Brendan opens a nightclub; Mike finds good reasons to keep his moustache.

When P.J. gets her own column in the paper, the guys tease her that she got the promotion because of her looks; Andy gives Bobby much-needed advice about women.

Bobby takes exception to PJ's competitive nature during the annual gaming decathlon. Meanwhile, Stephanie uses the guys to research a new article she is writing.

Brendan comes to the notion that PJ should make all his decisions. Meanwhile, Kenny forms a new band.

Spring fever hits the Windy City as springlike warmth during the middle of winter prompts PJ and Bobby to hold a picnic in the park...but a crucial life decision complicates the outing. Meanwhile, Kenny begins a new relationship, and Mike tries vainly to emulate actor Mathew McConaughey by buying a dog and a Jeep.

The guys figure how to make Facebook and the internet work for them, but a romance may need to be rebooted after bobby learns way too much information about PJ on there. Elsewhere, Mike and Brendan each try to find out as much information on a comely woman as possible, Mike by use of the internet and Brendan by use of old technology.

PJ becomes friends with one of Stephanie's friends, and Mike and Kenny make a new friend.

The gang head to Arizona to watch some spring training baseball. P.J. writes about the beginning of baseball season in order to keep all her bases loaded, but comes down with a case of writer's block. Meanwhile, Brendan has caught the eye of a player's girlfriend, and a lonely Andy remains back in Chicago.