"Mac & Dennis Move to the Suburbs" is the fifth episode of the eleventh season of It's Always Sunny in Philadelphia. Realizing they cannot find a place in Philadelphia that meets their requirements for their price range, Mac and Dennis move out to the suburbs. However, Frank doubts that "city scum" like them can last out there, and makes a bet with them that they will not last a month in the suburbs. And things start to quickly unravel in Mac and Dennis' new home.