Branded with disgrace due to his father's alleged military treason, Zeke survives on crumbs while working as an unappreciated custodian at the premier mech training academy. Arrogant noble cadets constantly ridicule his presence, deliberately vandalizing the maintenance hangar and forcing him into subservient labor. Zeke keeps his head down and endures the torment, quietly studying the complex internal circuitry of every armored titan parked in the bay.
When an unexpected alien ambush breaches planetary defenses and incapacitates the academy's elite pilots, all modern combat units lock down under security quarantine. Desperate to defend innocent lives, Zeke bypasses the lockdown and syncs his rare psychic wavelength with an obsolete mech sealed away for thirty years. Igniting the forgotten relic's primeval engines, the former janitor launches into frontline combat to overturn his father's shame and save the world.
