Sweet Tooth (2011)

Under a chemical sky, the world is wild; laid waste by an unknown catastrophe. There are no cities, no governments, only scattered military groups left without orders. Soldiers control territories without purpose, their captains ruling like warrior chieftains. This world has made Sergeant Ash savage. Determined. She broke ranks with the unit, and her Captain has turned against her. Convinced she's hiding a map he desperately covets, he is willing to do anything to get it back. Ash must fight to escape, but still has time to enjoy the sweeter things in life...