Carmen Clayton, a 19-year-old senior enjoying the final days of high school, sets off on an impulsive road trip with her best friend Sarah Lepton. Spoiled and carefree, the last thing on their minds is the state of the world. Their destination? A wild rave party, a last hurrah before graduation. But when the apocalypse hits unexpectedly, their world shatters, forcing them to face a brutal reality they never prepared for. Stranded and clueless, they stumble into a nearby town where they encounter two hardened brothers who offer the girls protection and a reality check. As the group struggles to survive, Carmen and Sarah must confront their sheltered upbringing and adapt to a brutal new world. Their lives-and their friendship-will never be the same again. As they fight to survive, Carmen finds herself torn between the past she's left behind and the undeniable bond she's developing with Daryl-a love tested by age, circumstance, and the apocalypse itself.