A plane crashes in the desert of Southwest Africa, and the pilot, McGavin, ends up near the remains of a dilapidated wagon. He meets Lieven and Seebohm, husband and wife, who help him regain his strength and mention the mysterious wagon. Seebohm tries unsuccessfully to seduce McGavin,
and the pilot returns to Johannesburg. There he learns the wagon was lost in the Boer War and is loaded with gold bullion. Hayter, along with his son and his son's girl friend (McGovern and Perschy), go back with McGavin to retrieve the gold. They fly out in a small plane but are attacked by a
mysterious party. The plane crashes and burns, with Hayter hurt and McGovern killed. It turn...