After finding sanctuary from the badlands of America, the adults have come to terms with their children being trained as soldiers to defend Fort Gold Rush. However, not everyone supports the military's decision.
A group calling itself The California Freedom Fighters, or the CFF, wants to take over the fort and run it themselves. Will, Kayley, and the others must decide which side to be on. Take over the fort or stop a takeover before it happens.
As Nathan continues to adjust to his new life and new family, his relationship with Grim deepens as his training intensifies and Grim's past secrets are revealed. Is Grim really the dangerous man that people fear him to be, or is there more to him than meets the eye?