The usual Saturday detention convened at the high school, a collection of restless teenagers anticipating the final minutes before freedom. But their mundane confinement shattered with a deafening roar as the chemical plant in their quiet t…

Caring for their ailing classmates, the group soon finds the strange illness they face is deeper, more complex than it initially appears.

Grover struggled to shield Mary from harm. A shared secret bound Diesel and Natalie together. Meanwhile, Barrett labored to establish contact with the world beyond their isolated location.

A fresh and terrible danger has fractured the fragile unity of the survivors, sowing distrust and animosity. Barrett proposes a course of action, one met with resistance, to glean further understanding of the creatures that stalk them.

Lashawn's behavior has become unsettling, and a growing unease settles among the others that he may be afflicted. Zoe and Barrett find themselves drawn into a hesitant partnership.

With dwindling supplies, Violet and Zoe embark on a perilous undertaking. Meanwhile, Zoe and Natalie confront unresolved chapters of their shared history.

The journey to the fallout shelter, fraught with peril, threatens one of the group's lives. Meanwhile, Grover uncovers unsettling details about Barrett.

A decision had to be made: someone must leave the shelter and seek assistance. As the reality of their situation settled in, Diesel found himself reconsidering his connection with Natalie.

The newcomer's presence at the school offered a glimmer of renewed possibility for the others. Grover wrestled with the question of whether to confide in Violet, to entrust her with a secret he had long held.

The simmering tension erupts with the unveiling of a betrayal. As further truths surrounding the blast surface, a member of the party offers a sacrifice.