Set against the backdrop of a remote loch-side Scottish holiday cabin park and set over the course of one single rainy summer's day, Summerwater looks at the simmering tensions between holidaymakers that eventually erupt into a devastating climax. Weaving together the lives of several families as they navigate unspoken conflicts, private dilemmas, and fleeting moments of beauty from their disparate cabins, the series will take an unflinching but empathetic look at human nature across generations.