In 1945, a group of Australian soldiers inadvertently stumbled across Amelia Earhart's downed airplane in the jungles of Papua New Guinea. Now, a team of specialists will use the soldiers' exclusive testimony and an old patrol map to find the plane again.

Veteran wildlife conservationist Bradley Trevor Grieve leads an elite team into uncharted Alaskan wilderness in search of Grandfather, a bear locals believe is the largest to ever roam the earth.