It's a time for celebration in Bad Axe County as the town gathers for the annual Syttende Mai--or Norwegian Independence Day--festival. During this rollicking family-oriented event filled with dancing and food, Sheriff Heidi Kick discovers a dark and shocking event--a migrant worker has been savagely beaten but refuses to explain what happened. Then, a sudden murder of a band member shatters the festival. Something is deeply wrong in Bad Axe County. As she looks for answers, Heidi plunges into a secret underworld where high-stakes cage fights double as combat training for the White Nationalist movement. Then all hell breaks loose for Heidi when her husband disappears and a secret he's been keeping from Heidi is revealed.