Dennis, Mac, and Frank go into real estate, while Dee sets out to be a surrogate for a wealthy couple. Charlie gets into it with an attorney over the law.

The gang tries to expand their horizons by going on a road trip to the Grand Canyon.

With a shantytown taking shape outside, Mac and Dennis try to keep Paddy's going in tough times. Meanwhile, Frank and Dee start a family business.

Frank's behavior is more bizarre than usual---so bizarre that even the gang notice---so they decide to stage an intervention.

The waitress is getting married, Dee is jealous that she's beating her to the altar, so she tries to derail the wedding.

The gang describes the trials and tribulations they went through, during game five of the World Series, in hopes the judge will clear them of all the citations they received.

The gang puts together a wrestling show for returning troops. Meanwhile, Dee finally meets the soldier that she has been communicating with over the internet.

The gang decides to expand their business by developing a number of products that they could sell at Paddy's pub.

Mac and Dennis decide that they need to spend some time away from each other. Meanwhile, Charlie helps Dee search for her cat.

Dennis reveals his foolproof system for seducing any woman to the rest of the gang, but they don't grasp the concept.

When Dee gets a part in the new M. Night Shyamalan film, Mac and Charlie seize a chance to pitch their movie script.

After being banned for 10 years from a local drinking competition appropriately named "Flipadelphia," the gang tries to reignite their old rivalry with another local bar. Finding that they are in need of some serious practice, the guys head to Dennis' old fraternity house at the University of Pennsylvania to get their game up to speed while Dee hones her skills on her own. Frank wears skinny pants.

Mac defends traditional marriage, while the rest of the gang reaps the rewards of wedded bliss.

Marital bliss turns into business, as the gang experiences the emotional and economic hardships of divorce.

The gang attempts to find adventure on the sea after they purchase their 'new' boat.

Mac finally gets his big break after correctly answering a trivia question on the radio. While Frank, Dennis, and Dee take their bar-banter to the internet with their own podcast.

Rejected from a pool club, Mac and Charlie set out fix an abandoned pool to help cope with the Philly heat wave. Meanwhile, Dennis and Dee go about dealing with the heat in a different way.

Mac's mother is left homeless after she burns down her house, which leaves Charlie and Mac with no choice but to make new living arrangements; when Dee feels under the weather, Frank tries to muster his paternal instincts to care for her.

The gang gets a real scare after Dee reveals she's pregnant, forcing the guys to recall their last hazy Halloween party to determine who the father is.

A blast from the past prompts the guys to expand membership, and Dee to re-consider her future.

Motivated by the drama teacher who inspired her, Dee takes a job as a substitute teacher, and exposes her students to the culture of Paddy's with a field trip to see the Gang's take on the Lethal Weapon series: Lethal Weapon 5.

Keeping the basement rodent-free drives Charlie to the brink. The gang throws Charlie a surprise party.

En route to Atlantic City for a charity event, Mac, Frank and Dee get lost. Meanwhile, Dennis and Charlie hitch a ride to town.

Dee's blessed event is fast approaching but the father's identity remains a mystery---to the gang, at least. So they throw a party and invite all of Dee's former flings.

After years of being mistreated by Frank during the holiday season, Dennis and Dee decide to teach him a lesson. Meanwhile, Mac and Charlie reflect on their childhood Christmases, and realize that they were not as joyous and wonderful as they remembered.

With Frank intent on marrying a prostitute, The Gang tries to make the best of it by attempting an image makeover to uncover the heart of gold that exists deep inside Frank’s “pretty woman.”

Dee and Dennis take the gang to their favorite childhood vacation spot where things aren't quite how they remember. While Dee and Dennis see the seedy side of the Jersey Shore, Mac, Frank and Charlie have the nights of their lives.

Frank finds himself in the child beauty-pageant business and fears that people might think that he's in it for the wrong reasons. Meanwhile, Dee wages war on stage moms, and Mac, Dennis and Charlie think they have found a contestant to back.

Dee faces an IRS audit over her claim that the baby she carried as a surrogate is her dependent, while the guys decide to run the bar in an unemotional, democratic manner rather than their typical method of shouting and personal attacks.

When Frank's long lost brother Gino shows up at the bar, the two of them tell the gang about the jazz club they ran in the 1960s and 70s, and how they fell out over Shadynasty, a singer who was the love of both of their lives.

As a hurricane threatens Philadelphia, Mac, Dennis and Charlie go to a mall to buy supplies and check out the large breasted TV reporter broadcasting from there, while Frank and Dee prepare Paddy's, and its basement bunker, for the storm.

The gang plays the most twisted board game ever. Dee and Dennis face Mac, Charlie and Frank.

The gang uses the Internet to cyber-stalk their prey. Frank tries to drum up business for Paddy's with a viral video.

The Gang's plan to "extract" an "artifact" from a residence is jeopardized when the owners turn out to be home. Having not been noticed on the way in, they must make a plan to get the same result for the way out.

Step inside the confession booth with Mac as he tells a befuddled priest why his fatness is the fault of the other members of The Gang.

Traffic problems as a result of the President's visit to Philadelphia makes it difficult for the gang to see the summer's biggest film, "Thunder Gun Express".

The gang have much to prove when they attend their high-school reunion. They meet old friends and make new foes as they stroll down memory lane.

The gang come up with a new plan to buff their tarnished high-school reputations at their reunion.