In the early 18th century, English cartographer Jonathan Green receives a royal commission to map the uncharted territories of Russia. On his journey, he encounters a series of strange and mythical creatures that challenge his understanding of the world. His path takes him to a remote village in China, where he discovers an ancient secret that could change the course of history. Meanwhile, a formidable Chinese princess is locked in a fierce struggle to protect her homeland from malevolent forces seeking to exploit its mythical powers.

Parallel to Jonathan's adventures, there is a captivity subplot involving a wise Kung Fu master who is imprisoned in the Tower of London. Through a series of gripping sequences, the master forms an unlikely alliance with his jailer, and they work together to find ways to escape and thwart an evil sorcerer's plot. These interwoven storylines set the stage for an epic confrontation that spans continents and cultures, melding historical drama with fantastical elements. The film creates a tapestry of action and adventure that brings together East and West in a dazzling display of cinematography and martial arts prowess.