An american journey on the road of the most useful and most prohibited plant in the world. Why is it that a plant that has been on the Earth for 38 million years, known and used for the last 5.000 years, has been prohibited for the last 80 years? Why, in the U.S., are an increasing number of states today legalizing and regulating its medical and recreational use? An amazing therapeutic journey crossing the borders of re-legalization: travelling through the valleys and mountains of organic growers vs. tobacco corporations, enlightened scientists and vested interests of the pharmaceutical companies; traversing the diverse experiences of those spending years in prison thanks to marijuana related offences and others helping to build this huge new industry…dreaming of a world saved by cannabis.