When10-yearoldOlivia'sMomgoesonabusinesstripfortheweekend,sheleavesOliviahomealonewithher17-year-oldbrotherMilesincharge.Thefirstnight,Oliviafallsasleeponthecouch,andwakesup,notrealizinghowlateitis.ShewalksherdogCharliewithoutMilesknowing,andwitnessesayoungwomanbeingkidnappedontheemptyNewYorkCitystreets.Oliviarun...