The drought - or the tap-out, as everyone calls it - has been going on for a while. Life has become an endless list of don'ts: don't water the lawn, don't take long showers, don't panic. But now there is no water left at all.
Suddenly, Alyssa's quiet suburban street spirals into a warzone of desperation and violence. When her parents go missing, she and her younger brother must team up with an unlikely group in search of water. Each of them will need to make impossible choices to survive.