第 4 季 共 22 集
播出时间：2011年9月23日
第 1 集 I'm Leslie Knope
播出时间：2011年9月23日
Leslie is torn between Ben and her dreams of running for public office, while Ron braces himself for the arrival of his first wife, the original Tammy.
第 2 集 Ron and Tammys
播出时间：2011年9月30日
Ron's first ex-wife, Tammy One, reenters his life and tries to control his every move. Meanwhile, Ben helps Tom balance the books at his new company, and Ann makes a PSA, with help from Chris.
第 3 集 Born and Raised
播出时间：2011年10月7日
Leslie's book about Pawnee comes out just in time for her campaign. Ann tries to bond with Ron and April.
第 4 集 Pawnee Rangers
播出时间：2011年10月14日
Ron takes his boys-only troop of Pawnee Rangers into the wild. Not wanting the girls to feel left out, Leslie also takes her troop of Pawnee Goddesses on an adventure weekend. Meanwhile, a reluctant Ben joins Tom and Donna for a day of relaxation, and Chris spends some time with Jerry.
第 5 集 Meet 'n' Greet
播出时间：2011年10月28日
Andy and April host a Halloween bash at their house. Tom emcees an event for Leslie's campaign. Andy and April receive an unusual wedding present from Ron and Ann.
第 6 集 End of the World
播出时间：2011年11月4日
A local Pawnee group predicts the end of days, causing chaos in the Parks department.
第 7 集 The Treaty
播出时间：2011年11月11日
Leslie enlists the help of Ben, Andy and April to host a Model U.N. for Pawnee Central High School. Chris asks Ann for her advice on love when a date cancels on him. Meanwhile, Ron struggles to find a replacement for Tom.
第 8 集 Smallest Park
播出时间：2011年11月18日
Leslie uses her new tourist attraction as a way to spend more time with Ben. Meanwhile, Ron and April encourage Andy to go to college, and Chris tasks Tom and Jerry with revamping the Parks and Rec logo.
第 9 集 The Trial of Leslie Knope
播出时间：2011年12月2日
Leslie has to face an ethics committee about her secret relationship with Ben after they come clean to Chris.
第 10 集 Citizen Knope
播出时间：2011年12月9日
Unable to get work done from inside the Parks Department, Leslie forms a citizen action group and fights from the outside. Meanwhile, everyone in the office brainstorms ideas for what to get Leslie for Christmas.
第 11 集 The Comeback Kid
播出时间：2012年1月13日
Leslie enlists everyone's help in staging an attention-getting event. Ben takes up a new hobby, while April and Andy adopt a pet.
第 12 集 Campaign Ad
播出时间：2012年1月20日
Faced with a tough new opponent, Leslie and Ben disagree on the content of her first campaign ad. Ron is very uncomfortable when Chris tries to befriend him, while Andy and April make a trip to the doctor.
第 13 集 Bowling for Votes
播出时间：2012年1月27日
Leslie and Ben host a bowling night after receiving feedback about Leslie's campaign. April, Chris, and Jerry hold a competition to see who can raise the most funds.
第 14 集 Operation Ann
播出时间：2012年2月3日
Leslie works to find Ann a Valentine's date. Ron helps Ben with a scavenger hunt, and Chris becomes depressed over his love life.
第 15 集 Dave Returns
播出时间：2012年2月17日
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.
第 16 集 Sweet Sixteen
播出时间：2012年2月24日
Leslie realizes that the department has forgotten Jerry's birthday and decides to throw a party for him at a special location. Meanwhile, Tom is flabbergasted when he finds out Ann doesn't share his taste in music.
第 17 集 Campaign Shake-Up
播出时间：2012年3月2日
Leslie and Ben are caught off guard when her opponent Bobby Newport hires a powerful campaign manager from Washington. Chris forces Ron to start interviewing replacements for Leslie when work starts falling through the cracks, and an unlikely officemate solves a challenging problem.
第 18 集 Lucky
播出时间：2012年3月9日
Leslie and Ben are thrilled when Buddy Wood wants to interview Leslie for his Indianapolis talkshow. April and Ron prep Andy for his final exam in his Women’s Studies course.
第 19 集 Live Ammo
播出时间：2012年4月20日
Leslie discovers that the Parks Department budget is about to be cut, and she later meets the City Council member she is running to replace. Chris and Ron visit a meditation center.
第 20 集 The Debate
播出时间：2012年4月27日
Leslie goes toe-to-toe with Bobby Newport in a debate. Ann, Tom, and Chris work in the media spin room, while Ron goes the extra mile to save a party for Leslie's donors.
第 21 集 Bus Tour
播出时间：2012年5月4日
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.
第 22 集 Win, Lose, or Draw
播出时间：2012年5月11日
It's election day in Pawnee, and Leslie and Bobby Newport are separated by a razor-thin margin. While everyone waits with Leslie for the race to be called, they ponder their futures, and their new opportunities.
