The Final Mobilization

The Guardian Corps is facing its final, most unprecedented challenge. Lt. Gen. Allison Cole, now a three-star general, issues a private summons to the veterans she trusts above all others to counter an emerging global threat that operates in the shadows of cyber-attacks and psychological warfare. For Colonel Marcus Vance and First Sergeant David Thompson, the call comes just as they are preparing to step into the quiet of retirement, forcing them to choose between the peace they've earned a...