During the Tong Wars in the late 1800s, Ah Sahm, a martial arts prodigy from China, immigrates to San Francisco and becomes a hatchet man for the most powerful tong in Chinatown.

An eccentric genius forms an international network of super-geniuses to act as the last line of defense against the complicated threats of the modern world.

Dom and the crew must take on an international terrorist who turns out to be Dom and Mia's estranged brother.