Gangsters: America's Most Evil is a documentary television series that airs on Reelz which profiles notorious criminals whose crimes involve murder, drug trafficking, racketeering, and human trafficking. Most, if not all of, the criminals profiled in this series were either brought to justice by local, state, and federal law enforcement or were killed as a part of their criminal enterprises.
Gangsters debuted on July 20, 2012, on Bio and is produced by Asylum Entertainment in association with A+E Networks (Bio's parent company). Season 4 aired first-run on Reelz and episodes from that season are labeled "Reelz Original" in the closing credits.