Prisoner: Cell Block H

Episode 658 (8x70)

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Wendy thwarts the hired hitwoman's attempt to kill Lisa, but the women take advantage of the events to run amok in the prison, since Marty and Delia are incapacitated. DIscovering Wendy is in fact an undercover cop, they turn on her and exact their revenge. Meanwhile, Ann, Meg and Pamela go out with Mervin to celebrate his birthday.