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's plan to use Facebook to promote Paddy's goes awry when they become obsessed with tracking down a man who shushed them while they were visiting a trendy new club.
Inspired by Indiana Jones, Dennis, Dee, and Frank sneak into a house supposed to contain a rare vase, but become trapped when the owners return home early.
A presidential visit to Philadelphia threatens to keep the gang from seeing a new action movie, leaving Dennis stuck in traffic, Frank stealing a boat, and Dee and Charlie prowling the city's sewers.
The gang attends their high school reunion, at which Dee manages to ingratiate herself with the popular crowd, Charlie and Mac get picked on, and Dennis is ignored by everyone.
