As Imogen and her newfound friends plot revenge against a mutual nemesis, Karen and her twin sister Kelly hatch an insidious plan of their own.

In the wake of Spirit Week, Imogen unearths long-buried truths on her path to unmask the mysterious “A.” After Sheriff Beasley closes in, Noa, Faran, and Mouse weigh their options, while Tabby works to recover vital evidence.

After their punishment comes to an end, the girls cement their friendship when Imogen needs them most.

Desperate to keep her mother’s house, Imogen throws a Halloween party to raise cash.