A government program poisons millions. An immune grandfather-granddaughter duo survive, hunted by ruthless scalpers and an official determined to save his son, leading to a fight for survival amidst the chaos.
After being shut down for eight years, Camp Trustfall is reopened in 1994 by a new owner. The first summer has come to an end and the counselors are closing down the camp for the year when one by one, they start to disappear.
After the death of her grandfather Fred, Aubrey and her friends return to his old farm house to pack up his things, unaware that Piper is nearby.