Gransazers

Also known as Super Star God Gransazers, which is the full Japanese title, The Gransazers is Toho's extremely successful Saturday morning show that began airing in 2003. The production was a large collaboration, with other companies involved including TV Tokyo, Konami, and Gansis. The program also inherited several key players from the Godzilla franchise, including special effects director Koichi Kawakita, who came out of retirement for the series, along with Kenji Suzuki and Kunio Miyoshi, who both directed numerous episodes.
The story of the show focuses on the descendents of an advanced human civilization, which was wiped out billions of years ago during a conflict with a terrestrial race called the Astral Allies. The twelve descendents, called Sazers, form four separate tribes: Fire, Wind, Earth and Water. Each Sazer posses extraordinary powers, and is able to control the Gransazers, mammoth war machines constructed by their ancient ancestors. At first, the tribes begin to wage wars amongst each other on Earth, until they discover that the Astral Allies are planning another strike, this time with the intent of wiping out humankind. Upon this revelation, the tribes join forces to mobilize a resistance against the invaders, and protect the future of all life on Earth.
The show ended up marking the first entry in what would later be called the "Super Star God" series. Follow ups include The Justirisers and Super Fleet Sazer-X, the latter of which also had its own movie, Super Fleet Sazer-X the Movie: Fight! Soldiers (2005), that features characters from all three shows.