The story features four divine Dragon Kings, rulers of the four parts of the world according to Chinese myths. The brothers are reborn in the modern world, complete with supernatural powers and the ability to become the Dragons which are their true forms. They are content to live ordinary lives as long as nobody meddles with them.

It becomes the mission of the four brothers to defeat the "Four Sisters", organization headed by four tycoons from America connected with the "Bulls" - enemies of the Dragons who have received ownership of the Western half of the world while the Dragons keep rule over the Eastern half of the world - before they use their control over technology and the economy to take over the world. However, as this battle begins, the four brothers must also find their place in the world as they flee from the destructive will of the "Bulls".