The Delaz Fleet, a rogue Zeon military group, disrupts peace on Earth and its colonies three years after the end of the One Year War. Anavel Gato, their ace pilot known as "The Nightmare of Solomon," steals the nuclear-armed prototype of the Gundam GP02A "Physalis" from the Federation's Torrington base in Australia. Rookie pilot Kou Uraki, with Nina Purpleton from Anaheim Electronics and the crew of the carrier Albion, tries to recover the stolen Gundam unit and prevent another war from occurring by piloting the GP01 "Zephyranthes" prototype.