Leslie helps a local swim team get more practice time by working on a new law that extends the hours at the community pool; Ron finds himself filling a pothole for a local woman (Lucy Lawless) as part of Chris' new plan to solve citizens' problems around the city; April and Ben take a road trip to Pawnee.

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.

Ben and Leslie's rival bachelor and bachelorette parties each take on a very different tune.

Leslie and Ben organize a black tie gala to raise money for their park, but their plans are derailed when a city-wide emergency response drill is called. Meanwhile, Andy prepares to take his Police Academy Exam and Ron fills in for Leslie on Pawnee Today.

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 accompanies Ben on a trip to his hometown which has offered him a key to the city. Ron deals with a lawsuit filed against him by Councilman Jamm. Ann and Chris take a parenting compatibility quiz.

Leslie decides to give the Animal Control Department a much-needed makeover. Ann tries to get Ron the medical attention he needs. Ben, Tom, and Andy recruit donors for their charity foundation.

Leslie works to get rid of outdated laws from the original town charter. April and Ron receive management training from Chris. Ben finds himself in a bidding war against Ann to win a present for Leslie.

Leslie deems Ron's budget-cut proposals unacceptable. Andy and Ben celebrate a big donation made to their charity. Ann tries to solve Tom's girlfriend troubles.

Leslie tries to calm a minor scandal that gets blown out of proportion. Tom tries to impress a new love interest, while Ben convinces Ron to prepare a will.

Leslie throws Ben a birthday bash but is forced to leave early for an emergency late-night filibuster. Tom tries to make some memories with his new girlfriend, Ron and Donna go hunting. April reconnects with Andy.

Leslie tries to complete some of her biggest city council goals, like hosting an NFL Play 60 event with the Indianapolis Colts, and trying to add fluoride to Pawnee’s drinking water. Meanwhile, Chris and Ron attempt to bond while building cribs for their future children.

Leslie faces off with Councilman Jamm; Ben gets a new hobby; Tom, April and Donna help Ron sell his cabin.

Leslie's efforts to take down the wall separating Eagleton and Pawnee yield unexpected results; Ben and Tom meet with possible sponsors for the concert; Ron finds a new hobby.

Leslie and Ben run a charity auction to raise funds for the unity concert. April steps in to manage Andy's schedule, while Donna asks Ron for help with her ex-boyfriend.

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.

Leslie and Ron briefly put aside their feud to help old foe Jeremy Jamm escape the clutches of the diabolical Tammy 2. Ben vows to help April discover her true passion in life, while Andy and Tom travel to Chicago.