A State in a State traces the construction, disruption, and fragmentation of railroads in the South Caucasus and Caspian regions, observing how these transport infrastructures have come to materialise the fragile political borders that re-emerged after the collapse of the Soviet Union. The film revolves around the scenes of delay and waiting that constitute cargo mobility, countering optimistic narratives about the New Silk Road and examining how the iron foundation of connectivity is used as a weapon of exclusion and geopolitical sabotage.