Twenty years have passed, and the earth is no longer what it used to be. The dragon and its descendants turned the planet into ruins. Most of the people died. The surviving people lived in a medieval castle with a very simple life. , Their leader is the grown-up Quinn, and his task is to ensure the safety of this small group of people.
One day in a difficult situation, a group of Americans came, and the leader was Van Zan. They came along and reportedly killed some dragons. After meeting the people led by Quinn, Van Zan urged everyone to kill the leading dragon together. If you kill it, the dragon family will not be able to reproduce. There will be hope for mankind to restore civilization. Quinn was reluctant to take the risk, because similar things had happened before, and all the people who tried to kill the dragon were killed by the dragon. But Van Zan is a difficult person to persuade. He insisted on his opinion and left with some of Quinn's people.
Except for Van Zan and a few of these people, indeed, none of them escaped death. The dragon also attacked Quinn’s castle, and most of them died in the flames. At this time, Quinn had no choice. He and Van Zan had no choice but to set out to London to face the dragon that almost destroyed the earth. At the same time, they were also facing great danger and a glimmer of life.