They then take revenge on their enemies in the form of a dance routine. The gang attend their high school reunion and are humiliated by the 'cool kids' and other former enemies. The gang rush to the movie theater to see the world's greatest action movie, but must avoid traffic caused by President Obama's trip to Philly. Mac confesses to a priest how he gained his weight, and why the blame falls on his friends. While robbing a house, the gang gets caught in a precarious situation when the homeowners return. The gang tries to track down an annoying shusher on Facebook and end up bickering about the use of the Internet for Paddy's business.

On a slow news day the gang plays a board game they invented (ripped off from other games) called 'Chardee MacDennis'. The gang runs into trouble when they try to prepare for a giant storm, and Dennis meets a woman he can't seduce. Frank's long lost brother shows up at Paddy's, revealing secrets about Frank's former life as a club owner, drug addict, and about Frank's former lover. The boys in the gang attempt to start a more democratic way of running Paddy's Pub, which ultimately results in more shouting.

When Dee comes into money from her surrogate pregnancy, she is forced to fake a baby funeral to avoid paying taxes to the IRS. Frank accidentally finds himself in charge of a child beauty pageant and tries to squash all suspicions that he is a pedophile while the rest of the gang pick contestants to mentor. The vacation turns nightmarish for the siblings, while Frank, Mac, and Charlie have magical experiences. The gang decides to take a road trip to the Jersey Shore so Dennis and Dee can relive their favorite childhood memories. Meanwhile, Dennis attempts to help Mac get healthy after gaining nearly fifty pounds.

Frank falls in love with a prostitute named Roxy which sets the rest of the gang off to try and transform her into a presentable woman.

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