S5 E1 - The Gang Exploits the Mortgage Crisis
S5 E2 - The Gang Hits the Road
S5 E3 - The Great Recession
S5 E4 - The Gang Gives Frank an Intervention
S5 E5 - The Waitress Is Getting Married
S5 E6 - The World Series Defense
S5 E7 - The Gang Wrestles for the Troops
S5 E8 - Paddy's Pub: Home of the Original Kitten Mittens
S5 E9 - Mac and Dennis Break Up
S5 E10 - The D.E.N.N.I.S. System
S5 E11 - Mac and Charlie Write a Movie
S5 E12 - The Gang Reignites the Rivalry
Videos: Trailers, Teasers, Featurettes
The fifth season of It's Always Sunny in Philadelphia, premiered on FX on September 17, 2009. The season contains 12 episodes and concluded airing on December 10, 2009.
Streaming, rent, or buy It's Always Sunny in Philadelphia – Season 5:
Currently you are able to watch "It's Always Sunny in Philadelphia - Season 5" streaming on Hulu, FXNow, fuboTV, DIRECTV or buy it as download on Apple iTunes, Google Play Movies, Vudu, Amazon Video, Microsoft Store, FandangoNOW, Redbox.