motors like jacinta know caffeine can curb hunger pangs.t's that desperation that's driving 500% spike in migration throughout central america. many heading to the u.s. one-third of migrants say extreme weather forced them to leave. so we journeyed to these remote guatemalan villages, over hours of rugged terrain, to see what's driving unprecedented numbers of people away. this dead corn represents calamity, literally starving families. because the farmers who live in these guatemalan hillside villages are already so poor, and yet the extreme weather conditions, severe drought, or too much rain at the wrong time, is destroying crops. and along with it, families' hopes and dreams. it's been seven straight years of failed crops and decades of dwindling yields due to el nino fluctuations. mother nature has turned cruel, leaving people with stark choices. starve or migrate. santos' family is looking for an escape plan. the 16-year-old shows us his home. walls and ceiling made of palm fronds. this is the house you all sleep in? >> si. >> your mo