Class of '07

After getting dumped on national television, Zoe goes into hiding by living off-grid until strange weather events lead her to seek out higher ground at her old school.

The classmates realise that they will be trapped at Ridge Heights for a while, and devise a plan to survive.

Zoe struggles with Sandy's disappearance; Genevieve begins a relentless search; Amelia leads a team of women to regenerate the electricity.

The women begin to power the school under Saskia's ruthless leadership; Zoe hunts for a new best friend.

Genevieve brings Saskia to trial for her mean girl crimes; Zoe finds herself in a tight spot when Amelia agrees to help Sasika.

When everyone has to sit inside with food poisoning during a severe storm, the class starts to heal old wounds. The ladies open the letters they had written to their future selves while in high school.