'FRESHWATER' trailer

In Episode 1: Fresh Water we follow Dr Mike Joy as he tests for nitrates in the tributaries that flow into Lake Wanaka, some of the most pristine fresh water in New Zealand – and then see the readings rise as he tests further downstream. By the time he gets to Ashburton, what will the readings show - and how close are they to levels associated with colo-rectal cancer? Along the way there’s personal insight into the character of a man who sometimes seems to relish his “Doctor Doom” label as we travel alongside him on his crusade to convert scientific knowledge into demonstrable action.