The Martian colonies

Another interesting series of adventures could easily focus on the stranded human colonies on Mars after the last war. The colonists find themselves with no help from earth, a finite supply of food, and three chemical engine ships. Between the riots, and the desperate missions to reestablish contact with the agriculture stations in orbit around the earth and the colonies on the moon, and jupiter this makes for another interesting premise to set adventures. anyone have any imput on this?