When an alien force lands at the base of Mont Blanc, Earth's armies mobilize to defend the planet. Colonel Takagi creates the Dorvack Team and its remarkable transforming Variable Machines in preparation for this day, but the military bureaucracy instead places its confidence in powered‑armor infantry. Undeterred, young pilots Masato, Louie, and Pierre set out to prove their worth. As the Dorvack Team climbs the ranks, they learn at every turn that real‑world battlefields rarely unfold the way they do in movies.