Descending from a long line of fishermen on the Yangtze River, Liu Gujun had to redefine his professional activity when the construction of the famous Three Gorges Dam began. His father, who has recently passed away, had to stop fishing the river due the growing pollution that the dam has created and asked his son to start cleaning the river. In the Chinese tradition of respect for the elder, Lui Gujon took the last wishes of his father very seriously. As such, he puts all his energy and invests every penny of his personal wealth into the ambitious project of cleaning up the river. For lack of sufficient grants from the government, Liu even contracts heavy loans to build a small flotilla of cleaning boats. By observing the daily lives of these green sailors on their small vessels, we are privileged to witness their unsafe and unrelenting struggle. If before the construction of the dam, nobody had anticipated this floating waste problem, today, nobody can continue to ignore the evidence of this ecological disaster.