The entire gang struggles to compete with a local bar owned by a Korean man who looks like Kim Jong-il, and then decide to sell out by offering Paddy's Pub to a corporate chain.
Two members of the gang find themselves on the wrong side of the law due to mistaken identity: Mac is suspected to be a serial killer after becoming distant from the gang and Dennis is mistaken for a registered sex offender after a real sex offender (who looks like a fatter version of Dennis) is released from prison due to overcrowding.
Dee begins dating an amateur rapper and Dennis tells her that he is mentally retarded.
Meanwhile, Frank, Charlie, and Mac start their own band but can't agree on what type of music they should play, especially when Charlie pens a disturbing song about being molested by a strange creature called The Night Man.
The third season of the American comedy television series It's Always Sunny in Philadelphia premiered on FX on September 13, 2007.
Meanwhile, after buying a junkyard police car to scare the homeless away from the bar, Frank and Dennis dress up in police costumes and begin to abuse the public while Charlie dresses as Serpico and tries to expose them.
The gang then hatches several schemes to become famous: Mac, Frank, and Charlie try to be viral video stars by covering the local news while Dennis and Dee seek fame as spoiled, drug-addled club hoppers.
Sweet Dee dates a local rapper mistakenly thought to be mentally handicapped by Mac and Dennis, the two of whom start a band, but can't quite pinpoint their genre of music—especially when Charlie comes up with a raunchy, disjointed song about a mysterious creature who violates him in his sleep.
Meanwhile, Frank, Charlie, and Mac start their own band but can't agree on what type of music they should play.
PM on a Wednesday Dee introduces The Gang to her new boyfriend—an up-and-coming rapper named Lil' Kevin.
When a restaurant chain offers to buy Paddy's Pub the guys try to make the deal go through by attempting to show the rep a good time.