The story of Elizabeth Thomas, a 15-year-old high school student who was groomed and abducted by teacher Tad Cummins.

Rudy and Claire decide to go on a camping trip for their anniversary. Unbeknown to them, there are mutated ticks lurking in the same woods, ready to drain them dry.

It follows Kara Robinson as she survives an abduction and ultimately brings down a serial killer. 卡拉·罗宾逊（Kara Robinson）在一次绑架中幸存下来，并最终抓获了一名连环杀手。