Under Arpaio shows the grassroots resistance to Maricopa County, Arizona's Sheriff Joe Arpaio who prides himself on being the "toughest sheriff in America". Arpaio prides himself on immigration raids on migrant and Latino neighborhoods, human rights violations in his jails and wasting hundreds of of millions of taxpayer dollars. Under Arpaio features the grassroots activists from low-income migrant communities, the attorneys, reporters, elected officials, and indigenous people who speak truth to power.