Three hundred years ago the Star League collapsed, and since then the Houses of the Lords-Heirs have been waging a fierce struggle among themselves. Combat robots are widely used in combat operations - huge humanoid machines weighing up to hundreds of tons, protected by reliable armor, equipped with powerful weapons and controlled by the fastest computers. But even the most advanced robot is helpless if there is no experienced pilot in its cockpit; one of these pilots, veteran Ion Rush, did not lose vigilance even when the Chancellor of the Capella Confederation himself seemed to have forgotten about it.