Upstream (2017)

Guo Wen-han, Mayor of Wanhe City, was seeking re-election but being kidnapped a few days before polling day by a young man from the North Bank, a poor and seriously polluted area of the city. It was a scheme plotted by a local petrochemical enterprise, hoping to ensure Guo's victory in the election so that their expansion application could be approved afterwards. However, this false kidnap turns to be a real one after the plot went astray and everything was out of control.... The fiction story, based on a true social issue of Taiwan, depicts struggle of the unprivileged for environmental justice under a huge web of polico-business complex.