After the infamous Sims war which resulted in devastation... SimCity, the only functioning city left annexed towns as their own territory: Belladonna Cove, Strangetown, Pleasantview, Riverblossom Hills, Veronaville, and Desiderata Valley. SimCity and its annexed towns are the only settlements that are known to be habitable. There are problems: crime, pollution, overpopulation, lack of resources, fear, et cetera.
What Sims forgot... is that before the war... there was a popular self-sustainable neighborhood being constructed. Will this neighborhood, Haven, be settled?
(picture of the Sims 2 town)