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Safe at home, Mia recovers from her camp trauma — until she receives an unexpected message. Elsewhere, others work to escape a high-security facility.

Mia, Petal and Harry officially start their journey with a new ally. In isolation, Midge makes a surprising connection. Amber keeps everyone guessing.

As the journey continues, Mia faces a major decision and holds Petal’s fate in her hands. Meanwhile, Midge navigates her new not-so-normal.

Past meets present as Midge reminds Mia of their history as friends… and enemies. Jenna and Fitz search for Harry and uncover a chilling secret.

Midge addresses the group, sparking a new wave of skepticism. Alex, Petal and Kayleigh examine Dr. Shore's records. Mia and Luka forge a new bond.

After Alex dives deeper into her research, the group prepares a new plan of action. Mia and Luka revisit their pasts. Amber connects with a visitor.

Tensions mount as Mia, Amber and Midge meet again. Elsewhere, Dev crosses paths — and exchanges words — with Luka. Sam serves as a voice of reason.

As Midge’s power grows stronger than ever, Mia and the group stage a dark and daring mission in hopes of stopping her once and for all.