Basically, you go across America via the Oregon trail getting fucked by Snakes, raped by disease and owned by rivers. From what I remember, you basically jump from fort to fort along the way to resupply your wagon. From time to time you can stop to hunt, where you cause the extinction of numerous animal species. Occasionally you have to go across a river somehow; this usually coincides with the end of one of your party-members.
Then you go fuck up Native Americans for drug money or something.
<3 that game.

