Sonya discovers a cyst on her ovary and must decide whether to have it removed, risking her fertility. Meanwhile, Chloe faces a blast from the past when Mel, an ex-lover, arrives in Erinsborough. Aaron and Elly help Chloe confront her past and decide whether to forgive Mel.

Sonya, Toadie and Karl struggle with terrible news Tereses frustrations with Paul boil over Marks future is in the balance. Sonya is determined to fight her diagnosis, while Toadie and Karl vow to support her. Terese and Paul struggle to keep their distance, and Marks appeal to get back on the force is successful.