Fallout: New Vegas - Honest Hearts

Honest Hearts takes you on an expedition to the unspoiled wilderness of Utah's Zion National Park. Things go horribly wrong when your caravan is ambushed by a tribal raiding band. As you try to find a way back to the Mojave, you become embroiled in a war between tribes and a conflict between a New Canaanite missionary and the mysterious Burned Man. The decisions you make will determine the fate of Zion.