17-year-old Eloise Brooks goes camping in the mountains every year for one week with her parents and the Karlsen's. It was always just them in their cabins that overlook the camping grounds and forest below. That is until Rebecca Karlsen's sister Lucy and husband Nick Park died in a tragic car accident, that leaves their two 5-year-old twins and 17-year-old son Noah with the Karlsen's. El is in for a surprise when she meets the Park's, particularly one boy in particular who knows just how to rile up the usually quiet and reserved Eloise. This is no ordinary camping trip for El but instead a week full of late-night adventures, marshmallows, a deadly storm and worst of all as Eloise believes, maybe something more between them.