Hao and Mad, two homeless kids living on the streets, grow up in a city where they have witnessed the atrocities of the Eagle gang led by Phad and the King Cobra gang led by Kriang. Living large, these two gangs rule the city by their huge manpower, collecting protection fees from merchants, gambling dens and prostitutes. One day. Tubtimtuay (Captain 9 lives) recruits Hao and Mad to elp the police and trains them to fight and kill with martial eapons. Afterward Thapthimthuai has each of them each gang, Hao in Phad's Eagles and Mad in Kriang's King Cobras, with the goal of pitching the two gangs against one another so they kill off each other until their numbers are low enough for the captain to take them down.
