Dying from diseases like ALS and Alzheimer’s is a tormenting process. The illnesses are on the increase, and scientists believe an environmental toxin is to blame.

Ellie O’Connell has ALS. She becomes the inspiration that informs scientist Paul Cox in his quest to find a cure.

This is a medical and environmental detective story where documentary filmmaker Bo Landin follows Cox and his team around the world in a hunt for the hidden killer.

The pieces come together in a toxic puzzle where cyanobacteria in our waters become the culprit. Are these organisms, fed by human pollution and climate change, staging nature’s revenge by claiming human lives?

Watch the trailer here.

Watch the full-length feature here.