Watch Do No Harm: The Opioid Epidemic (2018) : Full Movie Online Free A national public health emergency is sweeping through North America. In this close examination of the opioid crisis - the most deadly epidemic to devastate the US in recent years - medical professionals come together to deliver their verdict. Narrated by Ed Harris, Do No Harm shows us the devastating effects of these drugs, and casts light up on those who must be held accountable.