TwosisterslivingseparatelivesondifferentcontinentsarereunitedonaMediterraneanIsland.ThetwobarelyhavetimetobondandrevivefamilytiesasKate,theelder,meetsagroupoflocalsandagreestoanexcitingrideonahotairballoon.Butdisasterstrikesandastheresultofafreakaccident,theballooniscarriedfarouttosea.Theircellphonesoutofrange...