Exploring some of the most remote and spectacular places on Earth, five pioneering scientists make surprising discoveries that flip our understanding of nature on its head, and offer new hope for restoring our world.
Matthieson McCrae
as Bob Paine
Jaime Excell
as Jim Estes
Johnathan Newport
as John Terborgh
Ashlynn Jade Lopez
as Mary Power, Age 8
Samantha Nugent
as Mary Power, Age 33
Laurie Spiegel
as Mary Power's Mother
Greg Kriek
as Tony Sinclair
