Only 14 kilometers separate Spain from Morocco. The Campo de Gibraltar has become the main corridor through which tobacco, human beings, weapons and drugs are trafficked that drug traffickers introduce into Europe through the Spanish coasts.

Antonio García Ferreras accompanies the Civil Guard in one of the boats with which the agents fight drug traffickers in Andalusia. In addition, the journalist will interview a bellotero, a young man who is used as a human courier and who manages to swallow 50 balls of hashish.