A devoted conservationist and a journalist set off into the depths of the Amazon to report on corruption and criminal activity but are never seen alive again.
Season 4
In 2004, 9-year-old David Gonzales vanished from his mother’s sight in San Bernardino National Forest.
In 2010 and elderly couple set out on a road trip across Canada only to have their travels and lives cut short by a ruthless killer.
A teenage girl disappears while on a horseback riding trip in Yosemite National Park during the summer of 1981.
The brutal shooting deaths of two college students in a Florida forest in 2006 reveal a budding serial killer was on the loose for years before anyone stopped him.