The evil Mr. Moon and his criminal gang robbed a small but proud courier company, stealing a box of hats for Mr. Sun. The hero, thirsting for justice, assembles a team of dedicated employees to carry out a series of robberies and recover valuable items. A small group of couriers grows into a powerful army of skilled hat robbers, fighting side by side or even against each other. During each mission, newly minted fighters have access to stylish hats and weapons that will help return stolen property to its rightful owner.