Storm Hawks is set in a fictional world called Atmos, a largely mountainous world consisting of scattered masses known as terras. Because of the geography, travel is mostly 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 called Skimmers that can semi-transform into flying machines. These warriors are loosely managed by the Sky Knight Council.