Bolivia lost its coastline to neighboring countries over a century of border disputes, and this episode follows the railways Chile and Brazil built to reconnect it to the Pacific and Atlantic. The journey starts in Corumbá, Brazil, once Bolivian land, then follows the eastern railway through Santa Cruz and Sucre, where entire stretches of track sit abandoned and some communities walk for days just to reach a working station. In Potosí, the old silver-mining hub, freight trains still haul minerals toward the coast, and the route continues through the Uyuni Salt Flats, sitting atop some of the world's largest lithium reserves. In La Paz, the film shows how a cable car network has largely replaced the city's once-busy rail lines. The final leg climbs into the Andean highlands toward the Chilean coast, tracking derailments and altitude problems along the way. Shot on location with wide landscape footage and narration carrying the history, the episode uses Bolivia's crumbling rail network as a window into its long argument with geography.