Colombia has recently become the newest route for migrants traveling illegally to the United States, according to a Discovery en Español documentary.

The country, according to the documentary, serves as a transit point for many who undertake this perilous journey, generating lucrative profits for human trafficking rings and creating an authentic nightmare for authorities.

Discovery en Español exposes the various angles of this situation in Colombia: La Nueva Frontera, an original production premiering Sunday, June 7 at 10PM E/P during the Discovery a Fondo (#Afondo) block.

In recent years, thousands of people have found a new route to the United States, starting in Ecuador and using Colombia as a jumping-off point for Central America.

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From there, migrants travel through Mexico and cross illegally over the U.S. border. People from all over the world use this route, but the majority is from Cuba, Bangladesh and Nepal.

In 2014 alone, the Colombian authorities estimate, more than 1,700 undocumented migrants were detained along this route on their way to the United States.

The situation is becoming more serious every day thanks to more flexible immigration laws passed in some countries in the region, among them Ecuador.

For an inside look at the different facets of this complex reality, Discovery en Español’s production team profiled a number of migrants. They include Tony, a young man from Cuba who sets out on a dangerous odyssey from Quito to the Gulf of Urabá, near Colombia’s border with Panama, guided by a coyote known as “Gregorio.”

The documentary also exposes the workings of international human trafficking networks and counter-operations by immigration patrols and the Colombian Navy.

Colombia: La Nueva Frontera is a coproduction by Discovery en Español and Caracol Televisión under the supervision of Irune Ariztoy, Executive Producer; and Michela Giorelli, Discovery’s Vice President of Production and Development; with the assistance of Pacha Films, under the direction of Luis del Valle.