Leslie's ex-best friend, Lindsay Carlisle Shay, launches an attack on Pawnee, banning residents from visiting a nearby park in the neighboring city of Eagleton with a large fence, causing Leslie to go to war with Eagleton. Meanwhile, everyone finds out that it is Ron's birthday, a fact that he went to extreme lengths to conceal.

Ben, Leslie and Chris meet with Eagleton city councilor Ingrid de Forest to discuss financial matters; Ann brings April to vet school orientation; Ron tries to get off the grid.