In the year Universal Century 0079, a state of war began when the Principality of Zeon declared its independence from the Earth Federation government. In the war's opening stages, the Zeon forces maintained an advantage thanks to the effectiveness of their new weapon, the mobile suit. However, they lacked the fighting strength to fully conquer Earth, and the war became a stalemate.

Eleven months after the outbreak of war, a base in Zeon-occupied Eastern Europe is captured by the Federation Forces. A Zeon composite battalion is sent to recapture the base, and among its members are Solari and her Red Wolf Squadron, a mobile suit team that has only just arrived from space...

[Source: official English website]

The aftermath of the Great War scarred the world with a terrible legacy: the Lost Tech.

Caches of powerful war machines buried beneath the earth, forgotten after the end of the conflict.

Because of the terrible history of these weapons, the Kingdom of Artemisia refuses to seek out or use them. However, one commander, Major Nathan Gries, begins to believe that the only way to keep the world safe from the Lost Tech is to locate and secure them, to prevent them from falling into enemy hands.

Then one day, he receives an emergency message:

"Emergency transmission from the White Fangs.
An unknown signal has been detected beneath the Northridge Alps--"

Faced with Lost Tech, Major Nathan Gries, Lord General Isoroku Tsukumo, and Wolfram, leader of the White Fangs, will face a new test.

[Source: official English website]