Sergeant Gruffles leads a resistance movement against the tyrannical Tank Lord, who has seized control of the realm and subjugated its people. Recognizing that direct confrontation requires specialized skill, Gruffles recruits an elite squadron of gifted tank operators to form the backbone of a liberation campaign. Together, this armored force must push back against occupying forces and reclaim territory that once belonged to their homeland, facing increasingly dangerous opposition as they work to restore freedom to the land.