The plan is simple, the reward large. It should go off without a hitch. But nothing is ever as simple as it seems, especially in the foothills of the Rocky Mountains where the weather can turn in an instant.

The MacAllisters are gone for Calgary, their ranch hands in town drinking for the day, leaving their cattle unattended. It seems like the perfect opportunity for Amos, Wright and H.S. to seize. Just round up the herd and make a quick run for the border before anyone is the wiser.

Instead they encounter trouble at every turn and now a vicious thunderstorm comes riding in, just as night begins to fall. Worse, it seems the ranch was not quite so unattended as they believed...