The Peacekeepers, Liberty or Death. Book 3.

The updated audiobook follows the peacekeepers as they travel to various locations across the United States, uncovering secrets about their technology and confronting threats such as slavers, a rogue former soldier aiming to seize power, and a tyrannical "King" in Kansas. Along the way, they gather resources, develop drones and a battleship, and work to thwart plans for a military dictatorship. Through these missions, the crew faces intense challenges in their efforts to protect America from escalating violence and control.