The Gang’s all here…
Gilles Mingasson/Disney
Abbott Elementary won’t know what’s hit it.
“Oh, is that what this is?”
Dee retorts in response to Janine’s greeting.

Credit:Gilles Mingasson/Disney
The Gang, as they are fondly known, come to Abbott as volunteers sent by the district.
But it goes about as well as one might expect.
“It’s always funny in Philadelphia,” the promo promises, teasing the episode.

Charlie Day on ‘Abbott Elementary.Gilles Mingasson/Disney
“We will be doing an interesting crossover this season,” she hinted.
They officiallyannounced the special episodeback in October.
But the FX R-rated comedy and the primetime internet sitcom aren’t necessarily a natural pairing.
producer Justin Halpernpreviously toldEntertainment Weekly."
Audiences will find out how they figured that out when the episode airs on ABC on Jan. 8.