Bill Hawks is leading four wagons through to California when they are stopped by Tiburcio Mendez and his band of renegades, who demand they turn back. Mendez and his group claim that California is their land and that it was stolen by the later settlers. A judge traveling with Hawks' group believes that Mendez has a legitimate grievance which could be addressed by the legislature in Sacramento, and against Hawks' warning goes in to Mendez' camp to talk with him. When Hawks follows, both he and the judge are taken prisoner.