Terry Navarro, a shipping company agent, arrives at a desert port to deliver important papers to Frank Caswell. However, American secret service operatives Dorothy Dale and Walter Presscott, and a rival agent James Hackett, are also after the papers, believing they hold the key to capturing smugglers using Caswell's ships. Meanwhile, Arabian tribesmen, led by Ali Ben Aba, also seek the papers, leading to a thrilling chase and a near-fatal fall for Terry.
The Black Coin
A high-stakes battle erupts between government agents and cunning traffickers as they both scramble to claim powerful, missing documents that hold immense sway.