Hitomi is the granddaughter of Sensei Keiken and she wants nothing more than to be a member of the EXO-FORCE team, but her grandfather believes that it's too dangerous. However, Hitomi decides to prove him wrong by searching for a code that could be the key to defeating the robots forever. Along the way, she and Takeshi must learn to overcome their differences and work together if they are to survive and deliver the code safely.