The second season of It's Always Sunny in Philadelphia, premiered on FX on June 29, 2006. The season contains 10 episodes and concluded airing on August 17, 2006.

It's Always Sunny in Philadelphia: Season 2 - 10 Episode s

2x1 - Charlie Gets Crippled
June 29, 2006
An accident that puts Charlie in a wheelchair opens up a window of possibilities for the gang. Meanwhile, Dennis and Dee’s estranged father reenters their life in hopes of starting anew with his children and soon discovers that he enjoys the lifestyle of their friends.
2x2 - The Gang Goes Jihad
June 29, 2006
When the gang learns that they are in danger of losing their bar due to a zoning mishap, they resort to some outlandish and extreme methods to prevent that from happening. Meanwhile, Frank isn’t too happy when his wife returns to town.
2x3 - Dennis and Dee Go on Welfare
July 6, 2006
After quitting their job due to Frank's continuing interference, Dennis and Dee decide to seek alternative income by going on welfare. Meanwhile, Mac and Charlie must now bear the consequences of their friends’ departures from the business.
2x4 - Mac Bangs Dennis' Mom
July 6, 2006
Barbara hooks up with Mac to make Frank jealous, which leads to retaliation from Dennis.
2x5 - Hundred Dollar Baby
July 13, 2006
Frank runs into an old adversary at the gym when he begins teaching Dee to box after she was robbed. Hoping to make some extra money on the side, Mac and Dennis make preparations for Charlie to compete in an underground street fighting match.
2x6 - The Gang Gives Back
July 20, 2006
After being arrested for arson the gang is sentenced to do community service. Frank makes an effort to connect more with Dennis. Meanwhile, Charlie is also ordered to attend AA where he makes a startling discovery that might be beneficial in his ongoing quest to hook up with the Waitress.
2x7 - The Gang Exploits A Miracle
July 27, 2006
Mac and Dee become uncomfortable when the rest of the guys decide to make some extra money by exploiting the similarities between a water stain and the Virgin Mary. A reunion with someone from the past, stirs up forbidden feelings within Dee.
2x8 - The Gang Runs for Office
August 3, 2006
Driven by Frank's insight into the world of politics, Dennis pursues a political career by running for office.
2x9 - Charlie Goes America All Over Everybody's Ass
August 10, 2006
Dennis and Mac make a decision to take away all rules concerning moral and behavioral etiquette at Paddy's after an argument about the Constitution. Frank uses the decision and it's following consequences to his own gain. Meanwhile, Charlie tries to convey his love for America by protesting while Dee attempts to reaffirm her goal of being an actress.
2x10 - Dennis and Dee Get a New Dad
August 17, 2006
Dee receives e-mails from a stranger claiming to be her and Dennis' real father. Meanwhile, Mac decides to visit his father who is in prison.

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It's Always Sunny in Philadelphia - Season 2

It's Always Sunny in Philadelphia: Season 2 - 10 Episode s

2x1 - Charlie Gets Crippled

2x2 - The Gang Goes Jihad

2x3 - Dennis and Dee Go on Welfare

2x4 - Mac Bangs Dennis' Mom

2x5 - Hundred Dollar Baby

2x6 - The Gang Gives Back

2x7 - The Gang Exploits A Miracle

2x8 - The Gang Runs for Office

2x9 - Charlie Goes America All Over Everybody's Ass

2x10 - Dennis and Dee Get a New Dad

It's Always Sunny in Philadelphia: All seasons

S0: Specials

S1: Season 1

S2: Season 2

S3: Season 3

S4: Season 4

S5: Season 5

S6: Season 6

S7: Season 7

S8: Season 8

S9: Season 9

S10: Season 10

S11: Season 11

S12: Season 12

S13: Season 13

S14: Season 14

S15: Season 15

S16: Season 16