Two crazy women and the end of the world

Monica and Amber came from bad parts of life. Not just that, but the world ended. Suddenly it became about survival.  The two women meet working at a gas station in Kansas. As the world gets darker, Amber finds life of crime to be key in survival.  Monica hides a dark secret that threatens her sanity. Both are tired of the gas station life and journey to start over. Can they survive the apocalypse and their own personal hells?