It's Always Sunny in Philadelphia S15E05 - The Gang Goes to Ireland
Summary:
The Gang's in Dublin! Dennis longs for a charming, authentic European experience, but ends up helping Frank with some of his business's "dirty work." Mac and Charlie learn about their Irish heritage. Dee rushes to the set of an Irish soap opera, where she will play the role of "Obnoxious American MILF."
It's Always Sunny in Philadelphia S15E5 Screenshot