Super Sentai Series Choujin Sentai Jetman

This series takes place in 1991 on the Earth Ship, the command center of an international defense agency called Sky Force. In the ship, scientists have developed "Birdonic Waves", a newly developed technology which gives the subject superhuman abilities. The experiments called "J-Project" were successful. Five elite Sky Force officials from Earth were chosen to use this technology. However, the Earth Ship is suddenly attacked by Vyram, an evil outer-dimensional organization bent on inter-dimensional domination. After the death of a potential super-soldier and the misfire of Birdonic Waves across Earth and onto four civilians, a search starts for the remaining Jetmen.