The third show in the "Super Star God" series, Super Star Fleet Sazer-X began airing late in 2005 on TV Tokyo Channel 12. The television show, with its full Japanese title being Super Star Fleet Sazer-X, was produced under a large production committee that involved Toho, Yomiko, General Entertainment and TV Tokyo. Principal staff from earlier shows in the series once again returned to the fold, such as special effects director Koichi Kawakita, while the main directors for the serial included Ryuichi Ichino, Toshiharu Ikeda, Kenzo Maihara and Okihiro Yoneda, who directed Rebirth of Mothra 3 (1998).

The overall plot of the show starts in the year 2500 with an alien race, simply dubbed the "Space Pirates", now ruling over a conquered Earth. The invaders first started their conquest back in 2005, sending a lone warship and a small fleet. After capturing the twelve Cosmo Capsules, the aliens forces dramatically increased their ranks, sending a huge number of Megarion war machines to the Earth's surface. The ensuing war lasted for 500 years, as the Earth's surface become charred from the numerous conflicts while the major cities were quickly decimated, forcing the planet's factors to move toward underwater locations to conceal themselves. Without hope for the present Earth, a final offensive with the planet's resistance's is put into action. Mounting their attack around a small band of soldiers named Sazer-X, it's Earth's hope that they might be able to buy them enough time with a full scale attack so that they can slip into a briefly appearing wormhole. With a bit of luck, the offensive is a success as Sazer-X travels into the space disturbance and is thrust back in time, back to the year 2005 before the "Space Pirates" began their invasion. Joining forces with Ando Takuto from that time period, Sazer-X's mission is to secure the twelve capsules and defend Earth from the Pirates' attacks.

Roughly 12 episodes into the show, a theatrical movie on the series went into release called Super Fleet Sazer-X the Movie: Fight! Soldiers (2005) that also included characters from the earlier The Gransazers and The Justirisers shows.