 Evil aliens from the dying planet Spectra attempt to capture the Earth and its interstellar allies to plunder their natural resources. The Spectrans  ruthless leader, The Great Spirit, secretly controls his troops through his henchman, Zoltar. The Spirit will stop at nothing until the planets of the Federation, including Earth, belong to him. Who can stand in their way? Only "G-Force." A team of five teenaged orphans consisting of Mark, Jason, Princess, Keyop and Tiny. Each member of the team has incredible, cerebrionic-enhanced abilities. They have pledged their lives to stop The Spirit, Zoltar and their forces. "G-Force s" missions are coordinated from Center Neptune on Earth by their computerized assistant, 7-Zark-7.