Meanwhile, the stubborn Yi manages to escape his confinement and joins the "Heavenly Soldiers" and the villagers in their battle against the Jurchens. The invaders are defeated after a long and bloody engagement, but out of the modern soldiers only Park and North Korean sergeant Choi survive alongside Yi. Dr. Kim and the warhead make it back to the present, where she reports their experiences to the Korean generals.
Yi escapes his confinement and joins the "Heavenly Soldiers" in fighting against the Jurchens. The invaders are defeated after a long and bloody battle, but only Park and Choi survive from the modern soldiers. Dr. Kim and the warhead return to the present, where she shares their experiences with the Korean generals.