We travelled the treacherous human trail to the United States called the Darien Gap.
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It's a stretch of dense jungle connecting South America with Central and North America.
The fittest take days to cross, the feeble - weeks - and some do not make it.
Despite a US deal to close it off - record numbers are crossing, and now, an alarming number of children, an eight fold increase, in the first four months of this year.
Reporter: Guillermo Galdos
Cameraman: Rodrigo Galdos
Editor: Tim Bentham
Producer: Dani Isdale
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