Allan Quatermain and the Lost City of Gold (1986)

After surviving their expedition to King Solomon's Mines, Allan and Jesse have settled down in colonial Africa. They are engaged to be married and Jesse plans that they will travel to America for the wedding. But Allan is restless. A man chased by two strange masked men emerges from the jungle, and is recognised as one of Quatermain's friends. He is delirious and is cared for by Jesse and Allan, but at night, his pursuers return and kill him. Before he died, he told Allan that his brother, supposedly lost, is alive, and that they have found the legendary 'Lost City of Gold'. Quatermain immediately starts preparing for an expedition to find his lost brother. Jesse is furious and stalks off, but then realises how important this is to Allan.