00:00 A historical look at Rio Rico reveals its past confusion over US or Mexican status due to a vague border line.

01:53 A small island in the Betasoa River between France and Spain is jointly controlled due to its location on a river border.

03:43 A small landlocked section known as the Orcon Tract along the Rio Grande posed a border dispute between Mexico and the U.S. due to its peculiar S-shaped meanders creating an almost entirely surrounded isthmus of Mexican territory connected to the United States since Texas's statehood in 1845, causing no issues until disputes arose over land ownership after drastic river changes by natural processes.

05:29 A U.S. company artificially altered an S-shaped meander, resulting in the Orcon Tract becoming completely south of the Rio Grande and remaining as a Mexican border community post prohibition era without new official borders being established.

07:16 A man-made river alteration left Rio Rico in Texas as part of Mexico despite international law favoring natural borders.

09:04 A Texas town's legal battle affirmed citizenship for pre-1972 residents, leading many northward.

11:00 A Texas town's refusal to grant U.S. birth documentation spurred residents and foreigners alike to illegally claim Rio Rico citizenship, leading many northward while the community fades into obscurity.