It might be always sunny in Philadelphia, but that doesn't mean there aren't some clouds about to hit Abbott Elementary school. But Dennis isn't having it. "No, I don't think so," he says.

The crew is mostly happy to be there, until Dennis (Glenn Howerton) notices the cameras filming them ... and Danny DeVito on 'Abbott Elementary' But Dennis isn't having it. "No, I don't think so," he ...

The anticipation for Abbott Elementary and It’s Always Sunny crossover episode has been building up among the fans of both shows for months, and Part 1 of it is finally here. Aired as Season 4 Episode ...

The anticipation for Abbott Elementary and It’s Always Sunny crossover episode has been building up among the fans of both shows for months, and Part 1 of it is finally here. Aired as Season 4 Episode ...

The "It's Always Sunny in Philadelphia" crew is headed to "Abbott Elementary" in the first of two crossover episodes.

to cross paths with Frank (Danny DeVito), Charlie (Charlie Day), Dee (Kaitlin Olson), Mac (Rob McElhenney), and Dennis (Glenn Howerton). So when does Abbott Elementary return with new episodes on ABC?

cross paths with Frank (Danny DeVito), Charlie (Charlie Day), Dee (Kaitlin Olson), Mac (Rob McElhenney), and Dennis (Glenn Howerton). So when is Abbott Elementary on tonight? What time does the ...

Kaitlin Olson’s Dee and Glenn Howerton’s Dennis visiting Willard R. Abbott Elementary — and at odds with Quinta Brunson’s Janine, Tyler James Williams’ Gregory, Sheryl Lee Ralph’s ...