"We love this city but it needs to love us back." These chilling words beat through the overcoming soul of New Orleans, one of the most magical and entrancing places in America. Never before was it captured as well as in the HBO series Treme. And in the trailer released today for its fourth and final season, the world is a different place. It’s a mix of darkness and beauty on display, coupled with the honest-to-goodness hardships and realities of life in its post-Katrina world.