Tom tries to get back at Ron by going out on a date with Ron's ex-wife Tammy, while Leslie tries to protect Ron from falling prey to her charms. Meanwhile, April is assigned to work with Chris.

While trying to get an endorsement from the Chief of Police, Leslie and Ben awkwardly run into Leslie's old flame, Dave. Meanwhile, Andy and the rest of the office work on a theme song for Leslie's campaign.

Leslie gets upset when April tries to get Lot 48 made into a dog park. Meanwhile, Tom enlists Ben’s help as he tries to launch his new business venture, and Andy hones his crime scene investigation skills.

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.

Leslie and Ben are getting married, and have to cram months of planning into two hours. Meanwhile, Ron's temper gets him in trouble.

Leslie's speech she prepared for a special event is stolen. Ben begins his new job at the Sweetums Charity Foundation. Ann summons the courage to ask an important question.