It's Always Sunny in Philadelphia - Season 15 (2021)

When the Gang suspects Dee is menopausal, they scramble to find a new employee for Paddy's Pub; Dee decides to put her acting career on hold in order to mentor young actors.

The gang's in Dublin where Dennis 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 an "Obnoxious American MILF."

Dennis and Dee explore their new accommodations in the countryside; Frank accompanies Charlie to find the truth about Charlie's Irish childhood pen pal; Mac has an identity crisis and decides to join the seminary.

Mac spends a day at the seminary to truly understand what it takes to become a priest; Dennis and Frank plan an elaborate trap to humiliate Charlie's pen pal; Dee prepares for a date with an Irish doctor; Charlie bonds with his pen pal.

The Gang attempts to ascend a mountain in order for Charlie to fulfill an old and mysterious Irish burial tradition; one by one, the Gang backs out until Charlie is left to honor the dead body alone.