The story starts with Nick and Lori, a newlywed couple who, after eloping, want to take a mule ride down into the canyon with a guide, Henry.

Realizing they have spent the last day going the wrong way, they decide to attempt to climb up the rock face in the hope of getting a signal on Lori's phone.

When night falls, a pack of wolves gets attracted by the smell of blood and tries to attack them, but Lori successfully chases them off with fire and the knife.

The wolves are relentless in their attack, and being exhausted from days without food or water, Lori loses the ability to defend him.

She breaks down and goes into shock as a rescue helicopter rounds the edge of the canyon; paramedics start to administer first aid while she is kneeling next to Nick's body.