

8.046 minSeason 3 • Episode 4
LatestIsrael Keyes says he killed others but demands being promised the death penalty before saying who. Then guards find eleven skulls drawn in Keyes's own blood. Who are they? Before giving answers, Keyes suddenly shocks everyone with a dramatic and unexpected twist.
Eighty-five million acres make up the National Park System, and only 33 special agents nationwide are responsible for investigating crimes that occur on this public land. This documentary series follows the uniquely qualified team that leads the investigations as they seek to bring law and order to some of America’s most rugged and remote landscapes, tackling a new case each season.