A Korean restaurant owner threatens to get Paddy's kicked off the route for the city's annual pub crawl. The gang's response: War.

Mac teams up with Frank and Charlie to create a public access newscast after he misses his chance at fame in the news. Meanwhile, Dennis and Dee try to make it big in the club scene.

Dee gets involved with a famous local rapper who might be mentally challenged, and whose success inspires the rest of the gang to start a band.

After stumbling upon a kilo of cocaine, the gang is forced to pay off a $25,000 debt to the mob. Mac becomes a mob informant, while Frank pimps out Dennis as an escort at the local country club. Charlie stumbles upon an opportunity to sell illegal narcotics.

While paying off their debt to the mob, Charlie and Dee try to find a way to make fake cocaine in order to fool them, while Dennis ranks in thousands of dollars being pimped out at the local country club. Mac realizes his position as a mob informant isn't being utilized to its full potential.

In the season finale, Charlie accidentally puts Paddy's up as a prize for a dance marathon, which prompts the gang to enter the competition in order to save their bar.

Charlie and Frank awake to find poop in their bed. Neither will confess to being the owner, so they, Mac, and Dennis try to scientifically deduce who dropped the deuce. Dee wants to do something a bit more sophisticated, so she invites the waitress and Artemis to a girls' night out.

A newspaper critic is kidnapped by the gang after he calls Paddy's pub the worst bar in Philadelphia.

After discovering Dennis' erotic memoir, Mac and Frank attempt to make some money off of it. Meanwhile, Dee and Charlie decide to spend a day in each other's shoes.

After Dee suffers a heart attack, she and Dennis try to live a healthier lifestyle. Meanwhile, Charlie and Mac take corporate jobs to get health insurance.

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

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.

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.

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.

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.

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

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.”

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.

Mac, Charlie and Dee struggle with their faith as Charlie's mom fights cancer. Meanwhile, Frank loses his memory amidst a search for buried treasure.

When some bad blood with old foes compromises their ideal Thanksgiving, the gang decides to make amends by breaking bread with those they've hurt.

The gang gets into the online dating scene to expand their matchmaking potential.

In the past, an innocent Dennis learns the horrifying details of Frank's business, a truly sweet Dee is excited to head off for Hollywood, while Charlie and Mac's jobs at the roller rink are in jeopardy.

Mac spends a day at the seminary to truly understand what it takes to become a priest. Dennis and Frank plan an elaborate trap to humiliate Charlie's pen pal. Dee prepares for a date with an Irish doctor. Charlie bonds with his pen pal.

The gang goes to Risk E. Rat's, finding it updated with safety and overcautiousness. Dee takes Frank on a scavenger hunt to find risqué jokes hidden throughout the establishment. Mac plays Skee-Ball to win tickets for a prize.