In the year 0079 of the Universal Century, the space colony Side 3 declares its independence as the Principality of Zeon and declares war on the Earth Federation. One year later, they become embroiled in fierce battles for the Thunderbolt Sector, an area of space wrecked by the crash of destroyed colonies.

The ace of Zeon, Daryl Lorenz, works to help Kara Mitsum, the successful designer of the Reuse P device, recover from the trauma she suffered in the Battle of the Thunderbolt Sector. Meanwhile, after a deadly chase and confrontation in both the frozen lands of Antarctica and the dark depths of the ocean, the Federation ship Spartan reaches the area of the Nanyang Alliance.

As the Spartan encounters the first patrol units of the Allies, Io Fleming discovers that not all the ghosts of the Thunderbolt Sector are dead...

A new approach to the classic Gundam universe, Gundam Thunderbolt is a story filled with action and character focus, featuring a tough, realistic tone that requires some familiarity with the franchise to get involved.