In a small Colorado town, life is disrupted when paratroopers drop from the sky, signaling the onset of a sudden and devastating invasion by Soviet and Cuban forces. As the United States falls under enemy control, a group of high school students escape to the surrounding mountains. The teens, led by brothers Jed and Matt Eckert, take refuge in the wilderness as their hometown is besieged, grappling with the reality that their lives have been transformed overnight. Amid the chaos, these youths begin to find their bearings, slowly transitioning from average teenagers into a guerrilla unit.

Calling themselves the Wolverines, after their high school mascot, the group starts to fight back, using guerrilla tactics to undermine the occupying forces. They conduct a series of hit-and-run attacks, managing to elude capture despite the enemy's superior numbers and firepower. As the insurgency grows, the Wolverines become symbols of resistance for the occupied territory. Each encounter with the enemy hardens them further, drawing them deep into the complexities of warfare and the heavy burdens that come with fighting for their homes and freedom.