Katelyn and Kelsey Winters, two sisters distracted by an argument, unknowingly travel through a stretch of isolated wilderness plagued by mysterious disappearances.
A secret military experiment goes awry, leaking a devastating contaminant in to the air and water. 72 years later: "The Sickness" has forced the unaffected to take shelter in secure compounds.
Katelyn and Kelsey Winters, two sisters distracted by an argument, unknowingly travel through a stretch of isolated wilderness plagued by mysterious disappearances.