тАЛA national public health emergencyтАЛ is sweeping through North AmericaтАЛ. In this close examination of тАЛthe opioid crisis - the most deadly epidemic to devastate the US in recent yearsтАЛ - medical professionals from all corners of the country come together to deliver their verdict. Narrated by Ed Harris, Do No Harm shows us the devastating effects of theтАЛse drugs, and casts light тАЛupтАЛon тАЛthose who must be held accountable.