Prelude to the Storm

Alexis Oliver is sent to Blue Bay Harbor after her Sensei and Ninja School disappear into the sky. She told to find the other Ninja Rangers and help rescue the other Ninja schools, while saving the world from a evil rogue space Ninja. According to said rouge space ninja, there is more to Alexis than meets the eye? What is it? And does she herself even know? But can she help at just 16 while the Ninja rangers are older, with more experience?