A lone military force tries to hold the line against a vast autocracy absorbing free societies around the globe.

Chase tries reconnecting with Miranda and the Vanguard; Doc's new recruits arrive with more than a few questions and one perilous secret.

The Colonel raises concern about Doc's residency; Chase feels the impact of absence; new recruits are introduced to the potential of using gen: Lock mecha for combat.

Team members begin rigorous training to master their mecha; during the first field mission, a new threat emerges from the shadows.

A recruit's talent for tinkering raises concerns; Chase receives an overdue upgrade; the Vanguard goes on the offensive and engages a frighteningly familiar foe.

Doc reflects on past events before deciding his future; the team is tested like never before when the battle arrives at the Vanguard's front door.