Documentary about Boston's first residential green building, and the skeptical workers who are asked to build it. From wheatboard cabinetry to recycled steel, bamboo flooring to dual-flush toilets, the Macallen Building is something different, a leader in the emerging field of environmentally friendly design. But Boston's steel-toed union workers aren't sure they like it. And when things on the building start to go wrong, the young developer has to keep the project from unraveling.