Suddenly, the mysterious alien enemy Gemilas launched an attack on the earth. Countries around the world assembled all their combat power for defense, but they were tragically wiped out. Gemilas dropped countless star bombs, and most humans were killed. In 2199, five years after the space war, the earth contaminated by bomb radiation was about to die. The few survivors live desperately underground, including the ace pilot of the Earth Army, Gujin. Due to his family's death in the attack of Gemilas, Gujin was depressed with excessive grief and left the army.
One day, an unidentified object fell on the earth. It was a message packet from the planet Iskandar 148,000 light years away. According to the information, Iskandar has a device capable of purifying radioactive energy. This is the last hope of mankind. The Earth Defense Force created the last SPACE BATTLESHIP ヤマト and sent it to Iskandar. In ancient times, it was decided to board the Yamato and return to the battlefield of the universe. One year before the end of the earth, Yamato embarked on a battle journey
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