Susan and Bruce have moved their family to Chicago to try to find a different, unique sense of community that they haven't felt yet. Little do they know, they've stepped into the world of swingers and the American sexual revolution.
Bruce celebrates a great day on the trading-room floor by attending a party with Susan and the Deckers at the Playboy Club; Janet entertains her new neighbors and realizes how important her friendship with Susan is.
Susan asks for Janet's assistance in planning a house warming party in hopes of mending their damaged friendship, but Trina shakes things up when she adds guests to the list and a twist on fondue dipping.
Susan invites the Deckers to join the Millers' in a two bedroom cabin when the Thompsons back out of the annual trip. The foursome get a shock when Janet and Roger make a last minute appearance, just as things were getting cozy. Meanwhile, Laurie invites Doug over for a dinner while her parents are away, and BJ, Samantha and Rick break in to the Deckers home and go swimming.
The star of a controversial film is given a fundraiser at Decker's home to help pay for his legal defense, which is attended by Bruce and Susan.
When Trina and a high school sweetheart relive some fond memories, it causes Tom to become jealous. Meanwhile, In an effort to boost Bruce's career, Susan attends a Ladies Auxiliary Luncheon, but it's Janet who makes an impression on the elite organization.
Trina, already bitter about Tom's affair, is left in the dark about his decision to throw a spontaneous pool party to beat the record high temperatures in Chicago. Meanwhile, Roger asks advice from Susan after being fired at work, and Bruce cozies up to a co-worker.
Trina plays host for a "Puzzlerama" party for Roger and Susan, Bruce and Melinda and Tom and Janet , in which mismatched couples must figure out the clues from the neighborhood's darkest secrets.
As Tom and Trina close their relationship, Bruce and Susan open a new door with Brad and Sylvia, but are interrupted by Laurie and Doug Stephens.
Bruce insists the family head to the cabin for some time together, but Laurie has her own plans of meeting with Doug. Also, Janet and Roger seek advice from a therapist.
Bruce and Susan enjoy a night out when they go line dancing with Tom and Trina. Janet begins a temp job with a local newspaper. Janet manages to impress her new boss.
Susan decides to throw a surprise birthday party for Janet. Roger has a job interview for a position in Cincinnati and Samantha learns that she will be moving in with her cousin Lisa. BJ does not take the news well. Trina has a surprise for everybody that will change her and Tom's lifestyle.
The neighborhood couples confront relationship changing decisions during Trina and Tom's annual end of the summer clambake and key party.