Empire Builders is a 1924 film starring Snowy Baker, the second movie he made in America. It was highly popular in Australia.
Captain William Ballard of the Territorials is sent to make a treaty with the natives. He meets resistance from the Boers, still unreconciled to British rule. He falls in love with Katryn van der Poel. He succeeds in rescuing a lost party and recovering important military dispatches.
Source: Wikipedia