When a respected martial artist is accused of killing, he goes around in search of answers about his own mysterious origin story and the unknown enemies working to destroy him.
In ancient China, a group of European mercenaries encounters a secret army that maintains and defends the Great Wall of China against a horde of monstrous creatures.
When corrupt Roman leader Tiberius arrives with a giant army to claim the Silk Road, Huo An teams up his army with an elite Legion of defected Roman soldiers led by General Lucius to protect his country and his new friends.