Riley has recently been discharged from rehab after struggling with food and body image issues. She soon meets Ethan and finds herself navigating the line between unconditional love and a new addiction.

The Yellowjackets barely made it through summer in the woods, but now as winter begins to bite, hunger and desperation threatens to turn into full-on psychosis. Meanwhile, twenty-five years later, each survivor must ask themselves—is the darkness coming for them, or is it coming from them?