College AU where Artemis Crock is just trying to have a successful one-night stand. And then she meets Wally West. She's open to a few more nights.

Artemis and Wally are the last few heroes alive, battling an alien invasion. Until, after an ambush, Artemis is alone. Saved by a mysterious green girl, M'gann, she begins to recover from her injuries in an underground bunker. With M'gann's help, Artemis begins to see hope in this invasion.