Four egocentric friends who run a neighborhood Irish pub in Philadelphia try to find their way through the adult world of work and relationships. Unfortunately, their warped views and precarious judgments often lead them to trouble, creating a myriad of uncomfortable situations that usually only get worse before they get better.
The foursome demonstrate Chardee MacDennis for an interested board game executive, but the game sends things into chaos despite the gang's truce.
After falling out of the window, Frank thinks that it's 2006. The other three see this as a chance to fix their past mistakes.
Dennis and Frank battle Dee and Mac for control of the mountain, and Charlie learns the rules of the slopes.
Dennis makes a movie spotlighting his erotic memoirs while Frank and Mac try to pass off Charlie as a gifted artist to make money.
Mac and Dennis move to the suburbs for cheaper rent but find it hard to adjust.
The gang have a new scheme and Frank tries to keep up.
Old grievances surface when the Lawyers sues Bill Ponderosa on behalf of Liam McPoyle and his lost eye.
Dennis tries to create an innovative mobile Paddy's pub experience but runs into trouble when customers refuse to cooperate, while Charlie and Mac attempt to catch a thieving leprechaun.
The gang tries to take a vacation from their usual dynamic by going on a cruise, but old habits die hard.
The gang gets real with one another in the face of death.