Four ordinary kids from Da' Hood become crime fighters through the power of Ion Shards given to them by their martial arts master and mentor Chin Fu. They defend Drama City from the wicked and tyrannical Mow Zhen and his evil henchmen. Mow Zhen will stop at nothing to get possession of the precious shards of power.  Follow our yo-yo yanking youngsters as they embark on their many adventures ridding their hood and the world of evil doers, villians and scum