Guo Yaqin and Yang Shuhui

At the arms factory in Blue, White, Green, and Orange: A Strange Mountain, Guo Yaqin and Yang Shuhui's peaceful lives are shattered by an accident that sends them to the blazing battlefields of the War of Resistance Against Japan. They struggle to survive amid a hail of bullets, believing their fates have been changed forever. But a mysterious force strikes again, sending them back to 1977. Now college students, they return to the familiar arms factory. The factory is at a critical stage in the development of its second generation, and together with the young people of that generation, the two women make their mark in production and construction. Through their passion, they embody the spirit of striving without end, continuing the arms factory's legendary story.