Leslie, Ann and the rest of the Parks Department volunteer to help the organization KaBOOM! build a playground for a neighboring town. After building an entire playground in one day, Leslie gets frustrated at the lack of progress with the pit, and takes some advice from Mark to cut through the red tape.

After Jerry gets mugged by a bunch of kids, Leslie meets with the head park ranger in hopes of improving park safety. Meanwhile, everyone tries to be nicer to Jerry once he returns to the office.

Leslie takes the whole department camping in order to brainstorm new ideas. Meanwhile, Andy attempts a romantic gesture for April, while Ann gets nervous when Chris returns to Pawnee as the new city manager.

Leslie's book about Pawnee comes out just in time for her campaign. Ann tries to bond with Ron and April.

Leslie works to find Ann a Valentine's date. Ron helps Ben with a scavenger hunt, and Chris becomes depressed over his love life.

An important person in Pawnee dies while Leslie is on a bus tour for the final day of her campaign. Meanwhile Andy investigates a security threat, and Chris finds a cure for his depression.

Leslie and Andy visit Ben and April at their new jobs in Washington D.C., and Leslie feels overwhelmed by the city -- especially after meeting two of her idols. Meanwhile, Ron throws a "thank you" barbeque for the entire Parks and Recreation staff.

Ron, Diane, and Leslie attend a wood working awards dinner after one of Ron's handcrafted chairs is nominated, but the happy occasion is threatened by the arrival of Tammy II. Meanwhile, Jerry hosts a holiday party at his home with his wife, and some of his friends are shocked to find they were not invited.

When Leslie finds out Jerry is retiring, she struggles with the proper way to commemorate the occasion. Chris and Ann prepare to have a baby together. Tom worries he will become the office punching bag once Jerry leaves.

Leslie prepares a haunted house with Ben, Ann and Chris for Halloween on the day of the recall vote. Meanwhile, Tom fears the end of Rent-A-Swag and persuades Ron to help save his business.

On Ann and Chris's last night in Pawnee, Leslie throws a grand farewell party and attempts to fulfill one last promise. Meanwhile, Tom, Ben, Ron and Andy struggle to find the perfect going away gift for Chris.

Leslie, Ben, and Andy head to San Francisco for a National Parks Conference. Tom opens his restaurant, Ron has another run-in with his ex-wife Tammy 2, Andy lives a rock and roll fantasy, and Leslie makes a huge decision about her future.