Polo is supposed to transport a suitcase full of jewels across the border as a courier—a job he has done a thousand times before. But this time, something goes wrong. Other crooks are hot on Polo's heels. He is kidnapped and forced to hand over the suitcase. In the end, Polo lies on the ground, bleeding to death. Finally, he has time to think about what he did wrong. Hoping to find the reasons for his failure, he reviews the story once again.