When does Storm Hawks return?

The series is set on a fictional world called Atmos, a largely mountainous world consisting of scattered, towering, plateau-like land masses known as terras. Patrolling the skies of Atmos are the Squadrons, groups of warriors who pilot motorcycle-like vehicles called Skimmers that can semi-transform into flying machines. Ten years later, the main characters of the series stumble upon the wreckage of the Storm Hawks' carrier, the Condor, and unofficially become Storm Hawks themselves.