In the midst of the One Year War in Universal Century 0079, the Earth Federation and the Principality of Zeon clash fiercely in the Thunderbolt Sector, a treacherous space plagued by relentless electrical storms. The skilled Federation pilot, Io Fleming, faces off against Zeon's ace sniper, Daryl Lorenz, and his deadly team. As the battle unfolds amidst the remnants of shattered colonies, both sides refuse to yield, showcasing their prowess on the battlefield. However, when Io seizes control of a cutting-edge Gundam prototype, Daryl must make a harrowing choice: to harness unimaginable power to crush his adversary and secure Zeon's triumph, or witness the destruction of his comrades at the hands of a lone warrior.