Young mecha pilot Tetsuo survives the last great battle against an alien horde. His escape pod lands on Earth eight years later, but his homecoming is not what he expected!

In the year 2025, huge beasts from beyond the galaxy attacked Earth. In the war that followed, humanity fought back with a giant robot named Yukio, piloted by Tetsuo Yabusame, As the massive alien swarm closed in on humanity's homeworld, Tetsuo and the Earth Defense Force deployed for the final battle with the invading horde. They lost...

After Tetsuo and his crew narrowly escape an attack from Gold Coast, one of the strongest kaiju around, they head toward the Australian continent to retrieve the Ultimate Body, said to be the key to saving humankind. There, Tetsuo learns of Hitohira's tragic history as a member of the original TRUE E-RDE. Tetsuo is also reunited with his father after ten long years, but not all reunions are happy...