In a world that's filled with people with special abilities and powers, three siblings quickly learn that they have powers that are far more unique and different from anyone else on Earth. They soon learn that they are only half-human, a great evil seeks to destroy them when they are discovered, because ultimately, they may be the only hope to make things right again in the galaxy. They realize that their destinies are intertwined with the fate of the galaxy and they must do all that they can to restore peace.