Storm Hawks is set in a fictional world called Atmos, a largely mountainous world consisting of scattered landmasses known as terras. Because of the geography, travel is largely dependent on flight. The technology of Atmos is based around energy-generating crystals, used to power the various devices in the series. Patrolling the skies of Atmos are the Sky Knights, groups of warriors who pilot motorcycle-like vehicles that can semi-transform into flying machines. These warriors are loosely managed by the Sky Council.
In the backstory of the series, an Evil Overlord named Master Cyclonis threatened Atmos. The original Storm Hawks led the Sky Knights in a War against them, but were betrayed by one of their own, the Dark Ace. Despite this, the attack was apparently successful, though the Storm Hawks did not survive the War. Years later, the main characters of the series stumble upon the wreckage of the Storm Hawks' carrier, the Condor, and unofficially take on the Storm Hawks name in the hopes of becoming Sky Knights themselves, despite not being old enough to even legally fly the vehicle.[1] Their youth defeats their ambition, however, as neither friend nor foe take them seriously because of it.
This changes when they are brought into conflict with a new Master Cyclonis, one no older than they are but still just as dangerous. Among her followers are the Dark Ace, now famous for his betrayal and unmatched skill; Snipe, a mace-wielding strong man with a fondness for smashing things; and Ravess, an archer who brings a violin-playing henchman into battle for theme music. By managing to foil Cyclonis' plan, they are recognized by their peers.
The latter story focuses on the Storm Hawks' continuing mission to protect Atmos from the Cyclonian threat, but in turn put themselves in extreme danger by doing so.