A troubled teenage sharpshooter decides to avenge the death of her estranged sister after she is found murdered in a public bathroom.

After finishing exams June 1977 near Dublin, Frankie spends the summer with his two friends, siblings and mom while dreaming of two cute girls and waiting for exam results. College?

When a mysterious force begins to disrupt their big summer fun, Noah and his friends team up with a retired police detective to embark on a monstrous adventure to save their island.