Expect familiar guest stars to also pop into the special, which is being billed "A Parks and Recreation Special."
The premise for the scripted reunion is inspired by present-day, real-world events amid the coronavirus pandemic. It will follow Pawnee's most dedicated civil servant, Leslie Knope (Poehler), who remains determined to stay connected to her friends in a time of social distancing.
Pratt revealed Thursday that the special has already been filmed in a message on Instagram.
"It's true! We've already filmed the episode! Many are saying it's the greatest episode of television ever to be filmed in Quarantine. It's not a competition. But if it was... we would easily win," he wrote, jokingly adding, "People in need get help. And we FINALLY get that Emmy. Right? That's how this works? Ok. See you soon!!"
The Parks and Rec reunion telecast was created to raise money for Feeding America's COVID-19 Response Fund, which will enable food banks to secure the resources they need to serve the most vulnerable members of the community during this difficult time.
Parks and Rec's reunion telecast will be the first scripted television show to air during quarantine, with CBS' All Rise broadcasting its virtual episode about social distancing Monday, May 4.