The gang discovers the perks of being handicapped when Charlie becomes wheel-chair bound after an accident. Dennis and Dee's estranged father returns.

When half of Paddy's gets bought out by a business developer, the gang seeks revenge. Unfortunately, an ill-timed dog-napping plot, a poorly made video tape, and a flaming bag of poop threaten the gang's chances of getting their property back.

Dennis and Dee quit their jobs and concoct a plan to get welfare benefits so they can pursue their unrealistic goals and dreams.

Tensions run high in the gang when Mac courts Dennis and Dee's mom and the two organize a stakeout to blackmail Frank and get out of "Charlie work".

Inspired by the movie "Million Dollar Baby", Frank teaches Dee to inflict punishment while Dennis and Mac teach Charlie to take punishment. But both fighting careers are derailed by the use of "performance enhancing supplements".

After being arrested for arson, Charlie is sentenced to community service and required to attend AA. Here he makes a discovery that could assist him in his ongoing effort to connect with the Waitress.

Frank tries to cavort the holy crowd when Mac discovers a water stain on Paddy's wall that closely resembles the Virgin Mary.

The gang discovers that if you run for office, people will pay you to quit. So of course, the gang exploits this and Dennis runs for office. At the same time Frank and Charlie try to stop this, which ends up in a feud.

To prove their patriotism, Charlie and Dee try to upstage the local anti-smoking group, while Dennis and Mac turn Paddy's into a bastion of true freedom. But when Frank takes things too far, Paddy's is populated with creeps and lowlifes, and the gang decides they want to live under a totalitarian state.

When Dennis and Dee discover their mother has lied to them about Frank being their dad, they get to know their real father. Meanwhile, Mac and Charlie attempt to impress Mac's imprisoned father by becoming hardened criminals.