The Last Duel (1985)

Kil, a master of the martial arts and in charge of escorting the government's payroll, is deceived by Wang, the leader of a gang of bandits, and begins to trust Wang with handling some of his assignments. However, Wang executes Kil's family and takes over all Kil's property. The only survivor, Kil's son escapes to grow up into a man called Dragon who only has revenge on his mind...