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Described as a supernatural revenge-western hybrid. The Pinkertons are a private security guard and detective agency established in the US by Scotsman Allan Pinkerton in 1850.

A group of young female boarding school students end up stranded on an island and devolve into pre-pubescent savages.

Set against the annual competition known as “The Long Walk,” where 100 teen boys must maintain a walking speed above four miles per hour. If they receive three warnings in an hour, they are shot dead.