‘Abbott Elementary’ Is Heating Up in New ‘It's Always Sunny in Philadelphia’ Crossover Sneak Peek

The roof is about to be on fire over at Abbott Elementary thanks to some terrible volunteer work. Unfortunately, that’s just what you get when the gang from It’s Always Sunny in Philadelphia steps in to help their community. In a sneak peek of the upcoming episode, the second half of the Abbott Elementary and It’s Always Sunny crossover plays out, offering a closer look at what the latter’s Mac (Rob McElhenney), Charlie (Charlie Day), Dennis (Glenn Howerton), and Frank (Danny DeVito) were up to during their volunteer hours. The teaser reveals the latter three hard at work holding auditions to assemble Philly’s latest boy band, while Mac and Frank can also be seen taking a flamethrower to a set of bleachers and arguing over the building’s flammability.