The film delves into the 20th-century history of the US government's stance on marijuana, tracing its roots to xenophobia and anti-Mexican sentiment. Despite voices of reason, a misguided federal drug policy was established, prioritizing criminalization over public health. The story unfolds as a costly and ultimately futile campaign against a substance with questionable negative effects, which has eroded basic civil liberties.

Grass
A century-long history of government efforts to suppress the use of cannabis.