additional support is provided by the abrams foundation, committed to excellence in journalism... erine t. macarthur foundation, committed to building a more just, verdant and peaceful world. more information at macfound.org. park foundation, dedicated to heightening public awareness of critical issues. and by the frontline journalism nd, with major support from jon and jo ann hagler and additional support from koo and patricia yuen. corporate support is provided by... >> hi, i'm ryan reynolds owner of mint mobile. we're big fands of pbs, so this message will be delivered documentary style. since america's founding, people have struggled with communication plans. they called the pony express too slow making ponies everywhere feel like (horse sound), but times have changed. mint mobile offers no contract wireless plans unlimited talk and text, nationwide 5g coverage, and customers can bring their own phone. no ponies were harmed in making of this wireless company. ♪ ♪ >> narrator: tigray, northern ethiopia. our investigation began here in the winter of 2016. a group of refugees had

at fordfoudfation.org.or additional support is providedpo by the abrams foundation, committed to excellence. the park foundation, dedicated to heightening public awareness of critical issues. the john and helen glessner family trust. supportipp trustworthy journalism that informs and inspires. and by the frontline jonalism fund, with maj support from jon and jo ann hagler. and additional support from laura debos and scott nathan. ♪ ♪ >> paradise is... there's something about it, there's something with the country that's... the trees are beautiful. just living in the mountains, and... it's healing to be here. >> you saw hummingbirds and butterflies. we'dweleep outside under the stars. it's a tight-knit community. everyone is super-strong and resilienliup here. you never felt more safe than out there in the mountains. ♪ ♪ >> good morning and it's... a red-flag fire danger wning is in effect. up to 45-mile-per-hour gusts out of the north today. right now, it'57 degrees. humidity down to 19% already... ♪ ♪ >> i woke up early theorning of the eighth. the wind was very strong. pine needles were h

additional support is ovided by the abrams foundation, committed to excellence in journalism. ustworthy journalism that informs and inspires. and by the frontline journalism fund, with major support from jon and jo ann hagler. and additional support from laura debonis and scott nathan. captioned by media access group at wgbh access.wgbh.org >> for more on this and other "frontrone" programs, visit our website at pbs.org/frontline. ♪ ♪ to order frontline's, "fire in paradise" on dvd, visit shoppbs or call 1-800-play-pbs. this program is also available on amazon prime video. ♪ ♪ you're watching pbs ♪♪ ♪♪ -you've said you'd favor middle-class tax cuts. -the front line is just up here. that's where the river... -she took me out to those wetlands. -i think we'ree'ff to a great start. ♪♪ ♪ ♪ -mom taught us to love dad for who he is and what he does. -he's a hero. -is he? -yeah. -i can go in peace knowing i do my best. ♪ ♪ ♪

additional support is provided by the abrams foundation, committed to excellence in journalism... the john d. and catherine t. macarthur foundation, committed to building a more just, verdant and peaceful world. more information at macfound.org. park foundation, dedicated to heightening public awareness of critical issues. and by the frontline journalism fund, with major suppo from jon and jo ann hagler and additional support from corey david sauer. ♪ ♪ >> sullivan: in the foothills of southeastern tennessee, the city of chattanooga has been growing steadily for years. it has three sizable hospitals and its largest is downtown, the 680-bed, county-owned erlanger. it's chattanooga's safety net hospital. (medical equipment beeping) >> we got a gunshot going to 11. >> sullivan: dr. sudave mendiratta started at erlanger in 2008 and is now chief of emergency medicine. >> so, six goes to 101, and burns going to six... chattanooga's my hometown, and when i had the opportunity to come work at erlanger, i was excited to work with a diverse patient population. musical chairs, we'll get throu