Mac, desperately missing Dennis, ordered a custom Dennis sex doll with a gaping mouth… as one does.
Naturally, the rest of the gang mocked him for the sex doll (and refused to acknowledge his newly-ripped body), but they soon began to hear the doll speak to them as Dennis would have, undermining new employee Cindy (Mindy Kaling) from turning things around at Paddy’s.
The episode’s first version of Dennis wasn’t actually played by an active Glenn Howerton, although it certainly looked a lot like him.
Cindy finally took a stand against the gang not throwing away the sex doll, at which point the real Dennis popped up, scaring the hell out of them and prompting Frank to draw his gun and fire off a couple wild shots… as he does.