A physicist once indifferent to the state of British rivers became the leading co-founder of Friends of the Lower Wye. What has he learned so far in his journey?

In the heart of Herefordshire, an angler defies the naysayers who claim the river is polluted. With every cast, he seeks to prove that the waters he spends all day in are teeming with life.

The River Wye suffers from pollution caused by intensive agriculture. In the town of Ross-on-Wye, one dedicated farmer is striving to change this narrative.