It's Always Sunny in Philadelphia
Season 2, Episode 4: Mac Bangs Dennis' Mom
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Barbara hooks up with Mac to make Frank jealous, which leads to retaliation from Dennis.
All Episodes - Season 2
Episode 1
Charlie Gets Crippled
Episode 2
The Gang Goes Jihad
Episode 3
Dennis and Dee Go on Welfare
Episode 4
Mac Bangs Dennis' Mom
Episode 5
Hundred Dollar Baby
Episode 6
The Gang Gives Back
Episode 7
The Gang Exploits a Miracle
Episode 8
The Gang Runs for Office
Episode 9
Charlie Goes America All Over Everybody's Ass
Episode 10
Dennis and Dee Get a New Dad