Dragon Force.

In 2026, human science and technology are highly developed, solar energy, geothermal energy, wind energy and other environmentally friendly energy sources are widely promoted. People live rich and satisfied. Suddenly one day, the genius inventor Dr. J detected that these environmentally friendly energy sources suddenly disappeared. Mankind has fallen into a major ecological crisis. The environmental protection base decided to select a group of outstanding members to form a steel flying dragon to investigate the causes of the global environmental crisis.