Detective Sergeant Magnum Schultz is at it again, this time with her 21-year-old daughter, Jennifer as her partner. The two confront local political and cultural wars that deeply divide residents of Porterville, a small, Eastern Washington city. A clash of political viewpoints involves two brothers and leads to murder; a man is shot in a local tavern with 25 eye witnesses, yet no one seems to be able to identify the shooter or the motive; a fellow officer kills a black man during a traffic stop, which leads to a Black Lives Matter demonstration; white nationalists appear, and a white supremacist, once affiliated with the KKK, burns a cross on the lawn of a black Porterville family. The combined forces of unbridled political views and ignorant racism that erode her town force Magnum to step back and re-evaluate her own attitudes toward other races as well as her dealings with people during her 20-year law enforcement career.