Latin America's border agencies get the fly-on-the-wall treatment across ten episodes covering roughly 35,000 kilometers of frontier separating legal trade from smuggling. Customs officers in Colombia, Peru, Chile and neighboring countries search trucks, boats, and travelers for contraband ranging from counterfeit goods to drugs hidden in fruit shipments and banana crates. Episodes follow specific operations: fishermen running whisky through coastal checkpoints, cargo inspectors combing through produce for hidden narcotics, and patrols crossing stretches of desert where migrants and traffickers both try to slip through. Officers describe the tactics smugglers use to disguise loads and the instincts they rely on to catch them, while ride-along footage shows searches, seizures, and the occasional standoff at checkpoints and ports. The series moves border by border rather than staying in one country, giving a wide view of how differently each nation's force operates. It plays as procedural reality television, built on real enforcement footage rather than reenactment, with each segment structured around a single seizure or chase.