Mad Max Beyond Thunderdome (1985)

Robbed of his possessions whilst travelling through the Australian outback, Max manages to stumble upon Bartertown, a trading post for all manner of criminals and governed by Aunt Entity and Master Blaster. He is forced to fight on behalf of Aunt Entity in order that she gain complete control of the town, but he is thrown back out into the desert when the fight is over. He then stumbles upon a group of orphans, the only survivors of a plane crash during the nuclear war and with their help he returns to Bartertown.