pandemic, and with the support of the pulitzer center, correspondent nadja drost and videographer bruno federicoput themselves at great risk to bring us stories of people risking everything, to make their ways north toward the u.s. and a warning: the images and accounts in this report may disturb some viewers. >>epter: where south america meets central america, lies one it's road-less, lawless, andes. almost entirely uninhabited. its name: the darien gap. underneath the soaring jungle sknopy, migrants from around the arld rieath crossing the jungle, inesperate bid to reach the u.s. and canada. they have no map, and no instructions on how to make it through one of the w most dangerous migration routes. >> ( translated ): i would likes d send a mge to anyone who is thinking ng this route, it's very dangerous. if i knew this, i wouldn't have done it. >> reporter: many migrants spend a week or even two othis trail before they reach a village, and safety. but these journeys started long before. migrants, from asia, the middle east and africa flew into ecuador or brazil, where vis requirements are som