Marshal Troop and Johnny transport two convicted murderers to the territorial prison where one is to be hanged and the other, a doctor, has a long sentence. Along the route they encounter a stage coach which lost a wheel. A pregnant woman is injured and close to giving birth while the driver's arm was injured. Troop has the doctor he is transporting look at the injured and he says the woman cannot be moved. Troop sends Johnny for help along with the injured driver and one female passenger. Another female passenger stays behind to help the pregnant woman and another male passenger helps repair the stagecoach. When the prisoner sentenced to hang steals a shotgun, the doctor stands by his principals and knocks him out.