In the year 2011 A.D., after the civilization war between the Angel Squadrons and the Gofer Sisters before their memories taken the music box has been forbidden. The Inter-Dimensional Organization G is now continue of the new Bacterian Army with 4 new member squadrons to defeat the unknown Bacterian Force and the Dark Force was taken to earth and revolved their destruction but the Squadrons has going back in time to finish their most powerful forces among the real world of planet Gradius.