It's Always Sunny In Philadelphia Season 13: Every Episode Ranked Worst To Best
6. The Gang Makes Paddy's Great Again
The Season 12 finale saw Dennis leave Paddy's Pub to try his hand at fatherhood, leaving the Gang, and fans of the show, questioning how they will exist without Dennis. This question was answered with the arrival of Mindy Kaling's Cindy stepping in to help the Gang's scheming, and with the arrival of Mac's newest purchase; a sex doll that looks uncannily like Dennis.
This was a great comeback for It's Always Sunny, and the manipulation of the Dennis doll over the Gang - despite being silent and inanimate - is hilarious. Seeing the psychological power Dennis still has over the Gang is brilliant writing, and Mac's new physique and the rest of the Gang's unfazed reactions make for another great running joke.
Guest star Kaling isn't let loose to be as funny as she could be, playing it straight as the Gang's new ring leader, but the rest of the cast pull off great returns to their characters, and the return of the real Dennis at the end is a much welcomed moment.