Franky resorts to extreme measures to uncover the informer following Ferguson's revelation. Paranoid and feeling isolated from her former friends, she is determined to find out who has broken the number one rule of the prison. Drug tests are issued throughout Wentworth after the discovery of Doreen's discarded pregnancy test and the ensuing ruckus provides a suspicious Franky with the perfect opportunity to extract confessions from Jess and Bea. In the heat of the moment Liz makes a shocking admission