One year after recreational pot sales were made legal, CNBC takes you back to Colorado to examine the growing profits and potential perils of this 0 million industry. Harry Smith examines the issue of cannabis in the workplace, as Colorado employers work to reconcile a more-open cannabis culture with workplace rules that enforce zero tolerance.

The most touching parts of the documentary revolve around medical cannabis, in which Smith talks with families who have moved to Colorado because that’s the only way to get drugs they feel represent a last and/or best hope for their children.

Film Duration: 00:42