An experiment to make heroes with the power of Birdonic Waves goes wrong with the arrival of the Dimensional War Party Vyram, forcing Ryu Tendoh (the only successful subject) to track down the four who were accidentally struck to become the Jetman alongside him.
As Raita and Kaori continue the search for the third person hit with the Birdonic waves, Chokan and Ryu confront and attempt to convince Gai Yuki, a loner who takes orders from no one, to join the team.