Seventeen-year-old best friends Esme and Kayla were campers at Camp Pine Lake, and this year they are excited to be back as counselors in training. But the girls did something bad when they were campers, and have kept it a secret all these years. They've moved on, and this summer is going to be great. Two months of sun, s'mores, and flirting with the cute boy counselors. Until they get a note: The lake never forgets. It seems the secret they've kept buried for so many years is about to resurface.